重点讲解：
1. word of mouth (由)口头；
例句：The story has been passed down by word of mouth.
这个故事是口头流传下来的+|M=gC-jdz。
2. vice versa 反之亦然；反过来也一样；
例句：Active thoughts lead to active life and vice versa.
积极思考引导积极的生活，反过来也一样gB|]z4l6c5f;Fs。
3. grow on 越来越被…喜欢；逐渐为…所喜爱；
例句：Slowly and strangely, the place began to grow on me.
真是不可思议，我渐渐地喜欢上这个地方了HU*bL,5rqm4sSz8j2+。
4. so to speak 可以说；可谓；
例句：His orders were issued into a vacuum, so to speak.
他的命令在某种程度上等于一纸空文B[2%;flX4r04k。
5. by chance 偶然；碰巧；
例句：Our meeting at the station was quite by chance.
我们在车站相遇纯属偶然~Yv24#]I7N。
6. start off 从…开始；从…着手；
例句：She started off being quite matey with everyone.
她一上来就和每个人套近乎&4L]vA@xljqIsrl-。