helpful adj. 有帮助的；有益的； help vt. 帮助；促进；治疗；补救； 例句 He has helped to raise a lot of money. 他帮着筹到了很多钱。 She made helpfu...
will属于情态动词，情态动词后加动词原形。 例句 Prices will increase pro rata. 价格将相应提高。 The wind will freshen tonight. 今夜风力将加大，气...
