1.transform into 转变
The photochemical reactions transform the light into electrical impulses.
光化学反应使光变为电脉冲。
2.on the bottom of 脚下
Malone sat down on the bottom of the bed.
马隆在床脚坐下了。
3.large-scale 大规模的
Bolivia has been mercifully free of large-scale, drug-related violence.
幸运的是，玻利维亚没有发生过与毒品有关的大规模暴力事件。
4.tied to 关联
Their cancers are not so clearly tied to radiation exposure
他们的癌症是否和接触放射线有关还不太清楚。
5.be about to 即将
A new era seemed to be about to dawn for the coach and his young team.
对于那名教练和他的年轻球队来说，一个崭新的时代似乎即将到来。
