婴儿吮吸时，会有更多的奶水流出来。As the baby suckles, a further supply of milk is generated.那个孩子正在吮吸着空奶瓶.The baby was sucking away at the empty feeding - bottle.婴儿正在吮吸母乳.The baby was sucking its mother's breast....
He resigned amid allegations of financial impropriety.他在财务作假的质疑声中辞职了。Parliament was accused of constitutional impropriety.议会被指控有违宪行为.They were shocked by the impropriety of the young man's action.他们为那年轻人的不当举止而感到震惊.I...