Hesperornis is an extinct genus of flightless aquatic birds that lived during the Late Cretaceous.

黄昏鸟是一种已经灭绝不翔水鸟，生活在白垩纪晚期。

The penguin is a flightless bird.

企鹅是一种不鸟。

In some species, such as aphids, the flightless morph lacks wings and is called the apterous morph.

一些昆虫种类，如蚜虫，出现无翅个体，被称为无翅型。

Hesperornis is an extinct genus of flightless aquatic birds that lived during the Late Cretaceous.

黄昏鸟是一已经灭绝的不会飞翔的水鸟，生活在白垩纪晚期。

The penguin is a flightless bird.

企鹅是一不会飞的鸟。

In some species, such as aphids, the flightless morph lacks wings and is called the apterous morph.

一些类，如蚜，出现无翅个体，被称为无翅型。

Hesperornis is an extinct genus of flightless aquatic birds that lived during the Late Cretaceous.

黄昏鸟是一种绝的不会飞翔的水鸟，生活在白垩纪晚期。

The penguin is a flightless bird.

是一种不会飞的鸟。

In some species, such as aphids, the flightless morph lacks wings and is called the apterous morph.

一些昆虫种类，如蚜虫，出现无个体，被称为无型。

Hesperornis is an extinct genus of flightless aquatic birds that lived during the Late Cretaceous.

黄昏鸟是一种已经灭绝的翔的水鸟，生活在白垩纪晚期。

The penguin is a flightless bird.

企鹅是一种的鸟。

In some species, such as aphids, the flightless morph lacks wings and is called the apterous morph.

一些昆虫种类，如蚜虫，出现无翅个体，被称为无翅型。

Hesperornis is an extinct genus of flightless aquatic birds that lived during the Late Cretaceous.

黄昏鸟已经灭绝的不会飞翔的水鸟，生活在白垩纪晚期。

The penguin is a flightless bird.

企鹅不会飞的鸟。

In some species, such as aphids, the flightless morph lacks wings and is called the apterous morph.

些昆虫类，如蚜虫，出现无翅个体，被称为无翅型。

Hesperornis is an extinct genus of flightless aquatic birds that lived during the Late Cretaceous.

黄昏鸟是一种已经灭绝的不会飞翔的水鸟，生活在白垩纪晚。

The penguin is a flightless bird.

是一种不会飞的鸟。

In some species, such as aphids, the flightless morph lacks wings and is called the apterous morph.

一些昆虫种类，如蚜虫，出现无翅个体，被称为无翅型。

Hesperornis is an extinct genus of flightless aquatic birds that lived during the Late Cretaceous.

黄昏鸟是一种已经灭绝的不会飞翔的水鸟，生活在白垩纪晚期。

The penguin is a flightless bird.

企鹅是一种不会飞的鸟。

In some species, such as aphids, the flightless morph lacks wings and is called the apterous morph.

一些昆虫种类，如蚜虫，出现个体，被称型。

Hesperornis is an extinct genus of flightless aquatic birds that lived during the Late Cretaceous.

黄昏鸟是一灭绝的不会飞翔的水鸟，生活在白垩纪晚期。

The penguin is a flightless bird.

企是一不会飞的鸟。

In some species, such as aphids, the flightless morph lacks wings and is called the apterous morph.

一些昆虫类，如蚜虫，出现无个体，被称为无型。

Hesperornis is an extinct genus of flightless aquatic birds that lived during the Late Cretaceous.

黄昏是一种已经灭绝不会飞翔水，生垩纪晚期。

The penguin is a flightless bird.

企鹅是一种不会飞。

In some species, such as aphids, the flightless morph lacks wings and is called the apterous morph.

一些昆虫种，如蚜虫，出现无翅个体，被称为无翅型。