地球是个圆曲奇
加强用:strengthen或reinforce更好些be strengthening / reinforcing one's spoken (或 oral) English
爷很忙2
1.strengthen2.enhance3.reinforce4.intensify5.augment6.sharpening这6个都行如strengthen ['streŋθən; 'streŋkθən] vt.1. 加强;使强壮,使坚强有力;巩固:We all agreed on a treaty to strengthen the cooperation between our two parties.我们就双方的合作事宜签订了协议。to strengthen one's courage鼓舞某人,让某人鼓起勇气回答补充:Strengthen learning determination and the will加强学习的决心和意志希望我的回答 对你有所帮助 如有疑问 请在线交谈 祝你:天天开心 心想事成 O(∩_∩)O ...