重点讲解：
1. come on 得了吧；算了吧；
例句：Come on, Sue, that was two years ago.
得了吧，休，那是两年前jB9LA*HyWoVXiU-。
2. not at all (用于表示强调)一点不，根本没有；
例句：I am not an obsessive. Not at all.
我不是个强迫症患者，完全不是7DjZy!qk-wl。
3. be good for 有利的；有益的；
例句：They argued all the time and thought it couldn't be good for the baby.
他们一直在争论，认为这对孩子肯定不好[RH;bS8YK*。
4. try one's best 尽全力；竭尽所能；尽最大努力；
例句：He said that he would try his best and now he really succeed.
他说过他会全力以赴，现在，他确实成功了pwH3lLwPt1L。