I came across these old photos recently.

最近我发现了这些旧照片。

He happened on the book in a secondhand bookstore.

他在旧书店里发现了这本书。

Fleming discovered penicillin by accident in 1928.

弗莱明在1928年发现了青霉素。

In 1895, Wilhelm Roentgen accidentally discovered that a cathode-ray tube could make a sheet of paper coated with barium platinocyanide glow, even when the tube and the paper were in separate rooms.

1895年，威廉·伦发现阴射线管有一层氰亚铂酸盐钡的薄相纸发光，甚至当阴射线管和相纸分别放在不同的房间时也发光。

I came across these old photos recently.

最近我偶然发现了这些旧照片。

He happened on the book in a secondhand bookstore.

他在旧书店里偶然发现了这本书。

Fleming discovered penicillin by accident in 1928.

弗莱明在1928年偶然发现了青霉素。

In 1895, Wilhelm Roentgen accidentally discovered that a cathode-ray tube could make a sheet of paper coated with barium platinocyanide glow, even when the tube and the paper were in separate rooms.

1895年，威廉·伦琴偶然发现阴射线管能使涂有一层氰亚铂酸盐钡的薄相纸发光，甚至当阴射线管和相纸分别放在不同的房间时也能发光。

I came across these old photos recently.

最近我偶然发现了这些旧照片。

He happened on the book in a secondhand bookstore.

他在旧店里偶然发现了这。

Fleming discovered penicillin by accident in 1928.

莱明在1928年偶然发现了青霉素。

In 1895, Wilhelm Roentgen accidentally discovered that a cathode-ray tube could make a sheet of paper coated with barium platinocyanide glow, even when the tube and the paper were in separate rooms.

1895年，威廉·伦琴偶然发现射线管能使涂有一层氰亚铂酸盐钡的薄相纸发光，甚射线管和相纸分别放在不同的房间时也能发光。

I came across these old photos recently.

最近我发现了这些旧照片。

He happened on the book in a secondhand bookstore.

他在旧书店发现了这本书。

Fleming discovered penicillin by accident in 1928.

弗莱明在1928年发现了青霉素。

In 1895, Wilhelm Roentgen accidentally discovered that a cathode-ray tube could make a sheet of paper coated with barium platinocyanide glow, even when the tube and the paper were in separate rooms.

1895年，威廉·伦琴发现阴射线管能使涂有一层氰亚铂酸盐钡的薄发光，甚至当阴射线管分别放在不同的房间时也能发光。

I came across these old photos recently.

最近我偶然现了这些旧照片。

He happened on the book in a secondhand bookstore.

他旧书店里偶然现了这本书。

Fleming discovered penicillin by accident in 1928.

弗1928年偶然现了青霉素。

In 1895, Wilhelm Roentgen accidentally discovered that a cathode-ray tube could make a sheet of paper coated with barium platinocyanide glow, even when the tube and the paper were in separate rooms.

1895年，威廉·伦琴偶然现阴射线管能使涂有一层氰亚铂酸盐钡的薄相纸，至当阴射线管和相纸分别放不同的房间时也能。

I came across these old photos recently.

最近我然发现了这些旧照片。

He happened on the book in a secondhand bookstore.

他在旧书店里然发现了这本书。

Fleming discovered penicillin by accident in 1928.

弗莱明在1928年然发现了青霉素。

In 1895, Wilhelm Roentgen accidentally discovered that a cathode-ray tube could make a sheet of paper coated with barium platinocyanide glow, even when the tube and the paper were in separate rooms.

1895年，威廉·然发现阴射线管能有一层氰亚铂酸盐钡的薄相纸发光，甚至当阴射线管和相纸分别放在不同的房间时也能发光。

I came across these old photos recently.

最近我偶然发现了这些旧照片。

He happened on the book in a secondhand bookstore.

他在旧书店里偶然发现了这本书。

Fleming discovered penicillin by accident in 1928.

弗莱明在1928偶然发现了青霉素。

In 1895, Wilhelm Roentgen accidentally discovered that a cathode-ray tube could make a sheet of paper coated with barium platinocyanide glow, even when the tube and the paper were in separate rooms.

1895，·伦琴偶然发现阴射线管能使涂有亚铂酸盐钡的薄相纸发光，甚至当阴射线管和相纸分别放在不同的房间时也能发光。

I came across these old photos recently.

最近我偶然发现了这些旧照片。

He happened on the book in a secondhand bookstore.

他在旧偶然发现了这本。

Fleming discovered penicillin by accident in 1928.

弗莱明在1928年偶然发现了青霉素。

In 1895, Wilhelm Roentgen accidentally discovered that a cathode-ray tube could make a sheet of paper coated with barium platinocyanide glow, even when the tube and the paper were in separate rooms.

1895年，威廉·伦琴偶然发现阴射线管能使涂有一层氰亚铂酸盐钡的薄相发光，甚至当阴射线管和相放在不同的房间时也能发光。

I came across these old photos recently.

最近我偶然这些旧照片。

He happened on the book in a secondhand bookstore.

他在旧书店里偶然这本书。

Fleming discovered penicillin by accident in 1928.

弗莱明在1928年偶然青霉素。

In 1895, Wilhelm Roentgen accidentally discovered that a cathode-ray tube could make a sheet of paper coated with barium platinocyanide glow, even when the tube and the paper were in separate rooms.

1895年，威廉·伦琴偶然阴能使涂有一层氰亚铂酸盐钡的薄相纸光，甚至当阴和相纸分别放在不同的房间时也能光。

I came across these old photos recently.

最近我偶然现了这些旧照片。

He happened on the book in a secondhand bookstore.

他旧书店里偶然现了这本书。

Fleming discovered penicillin by accident in 1928.

弗莱1928偶然现了青霉素。

In 1895, Wilhelm Roentgen accidentally discovered that a cathode-ray tube could make a sheet of paper coated with barium platinocyanide glow, even when the tube and the paper were in separate rooms.

1895，威廉·伦琴偶然现阴射线管能使涂有一层氰亚铂酸盐钡的薄相，甚至当阴射线管和相分别放不同的房间时也能。