throwastone;投石子
throw[fling]agrenade;投手榴弹
drop[cast]aballotintotheballotbox把选票投进投票箱
drownoneselfinariver;throwoneselfintoarivertocommitsuicide投河自尽
castanadmiringeyeonher;向她投羡慕的目光
Thetreeprojectsashadowonthegrass.树影投在草地上。
sendaletter;投函
send[post]one'scard投名片
forsakedarknessforlight;弃暗投明
putupataninn;投店
findeachothercongenial;beattractedtoeachotherbycommontastes;情投意合
catertosb.'stastes;投其所好
TouTiao投调