重点讲解：
1. tend to do sth. 往往会；经常就；
例句：Like causes tend to produce like results.
类似的原因往往产生类似的结果3pD.1BgG@JniJ15a0。
2. swear by 极其信赖；对…推崇备至；
例句：Many people swear by vitamin C's ability to ward off colds.
许多人深信维生素C能预防感冒@ez_mU2G_PKUmM.。
3. sort of 有几分；近似；有那么点儿；
例句：I guess he's sort of a miser like most bachelors.
我想他一定是个吝啬鬼，象大部分单身汉一样M.h@G1s#i]%m3+@^9i。
4. be interested in 感兴趣的；有兴趣的；关心的；
例句：I think you may be interested in our new product.
我想贵公司可能会对敝公司的新产品感兴趣u+Y]&uCGQ6GwRGNz3。