熟知

The actor is well known to us.

我们知这个演员。

All the actors know the play backward.

所有演员对剧本都知到可以倒背如流。

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

最为人们所知粮食是小、、燕、黑和玉米。

The cuckoo is characterized by its familiar call.

杜鹃为人知叫声是它特征。

She had been cut adrift from everything she had known.

她远离了她所知一切。

As well known, the loss of efficiency in est-imation and inference may be substantial if hetero-scedasticity is neglected.

知，如果误差同方差要求不能满足，利用同方差回归估计和推断有效性会降低。

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.

人所知胡萝卜烷由胡萝卜素加氢构成,在转化中需要消耗量氢,因而整个过程是非常典氧化还原反应。