我吃了二分之一的蛋糕。

I ate one half of the cake.

他把苹果切成了二分之一。

He cut the apple into one half.

这个瓶子里只有二分之一的水。

This bottle has only one half of water.

这个房间的面积是那个房间的二分之一。

This room is one half the size of that room.

我们需要用二分之一的时间完成任务。

We need to finish the task in one half of the time.

(以下哪个数是400的十分之一的四分之一的二分之一? )

What is the number that is one half of one quarter of one tenth of 400?

对于衰老茶树，须进行重修剪，剪去茶冠的三分之一至二分之一。

For aging tea tree, is the subject of a heavy pruning, to one-third of tea Crown to one half.

欧的词中，写爱情的作品占全部词作的二分之一以上。

Among the Ci of Ou Yangxiu, works about love reached over one half.

哥本哈根大学理论给病人化验其混合骨一大匙、二分之一茶匙肉桂前早餐。

Copenhagen University tested their theory by giving patients a mixture of one tablespoon of hone and one half teaspoon of cinnamon before breakfast.

分会得设候补干事，其名额不得超过该分会干事名额二分之一。

A branch may have substitute secretaries, the number thereof shall not exceed one half of that of secretaries of said branch.