熟知的

She had been cut adrift from everything she had known.

她远离了她所一切。

The cuckoo is characterized by its familiar call.

杜鹃为人叫声是它特征。

The best-known grains are wheat,barley,oats,rye and maize.

最为人们所粮食是小麦、大麦、燕麦、黑麦和玉米。

In the whole process of forming hydrocarbon, there exist the joining and removal of hydrogen or oxygen atom and heteroatom from the beginning to end.

人所胡萝卜烷由胡萝卜素加氢构成,在转化消耗大量氢,因而整个过程是非常典型氧化还原反应。