When they hit the trees, the impact can snap them in half.(當它們撞到樹上時，沖擊力會讓它們斷成兩半。)

The illness is dangerous, because it is involved in half of all automobile accidents.(這種病很危險，因為在所有的交通事故中，有一半都與它有關。)

Cut the circular cake in half and set each semicircle against adjoining sides of the square to form the top of the heart.(把圓形蛋糕切成兩半，把每個半圓放在正方形的兩邊，形成心形的頂部。)

She sawed the plank in half.(她把木板鋸成兩截。)

In half a dozen words, he had explained the bond that linked them.(他用五六個字解釋了將他們聯系在一起的那種關系。)

He snapped the stick in half.(他喀嚓一聲把棍子折成兩段。)

There was a machine in the kitchen which could extract the juice of two hundred oranges in half an hour if a little button was pressed two hundred times by a butler's thumb.(廚房里有一臺機器，只要管家用拇指按下小按鈕兩百次，半小時就能榨出兩百個橙子的汁。)

Naomi Muriuki, 58, took the initiative to tell everyone that this device could reduce the amount of firewood used in half.(58歲的納奧米·姆里烏基彎腰主動地給大家講這種裝置能使柴火用量減少一半。)

In half an hour's whirl of activity she does it all.(在半個小時馬不停蹄的忙碌中，她做完了這一切。)

My life will pick me up in half an hour.(我妻子在半小時內會來接我。)