need want require 作“需要”时，其前面的主语是指物的名词或代词时，其后常用动名词ing或不定式的被动形式作宾语，表被动need / want / require + ving /to be done
adj/adv + enough to do 足够做某事
the way to do sth / the way of doing sth 做某事的方法
can't / couldn't help (to) do sth 不能帮助做某事
use
be used to doing sth 习惯于做某事
persuade sb/sth doing sth 说服某人做某事
