When they hit the trees, the impact can snap them in half.(当它们撞到树上时，冲击力会让它们断成两半。)
The illness is dangerous, because it is involved in half of all automobile accidents.(这种病很危险，因为在所有的交通事故中，有一半都与它有关。)
Cut the circular cake in half and set each semicircle against adjoining sides of the square to form the top of the heart.(把圆形蛋糕切成两半，把每个半圆放在正方形的两边，形成心形的顶部。)
She sawed the plank in half.(她把木板锯成两截。)
In half a dozen words, he had explained the bond that linked them.(他用五六个字解释了将他们联系在一起的那种关系。)
He snapped the stick in half.(他喀嚓一声把棍子折成两段。)
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.(厨房里有一台机器，只要管家用拇指按下小按钮两百次，半小时就能榨出两百个橙子的汁。)
Naomi Muriuki, 58, took the initiative to tell everyone that this device could reduce the amount of firewood used in half.(58岁的纳奥米·姆里乌基弯腰主动地给大家讲这种装置能使柴火用量减少一半。)
In half an hour's whirl of activity she does it all.(在半个小时马不停蹄的忙碌中，她做完了这一切。)
My life will pick me up in half an hour.(我妻子在半小时内会来接我。)
