重点讲解：
1. make sure 一定要；设法保证；
例句：Make sure the draining board, sink and plug hole are regularly disinfected.
滴水板、水槽和塞孔一定要定期消毒oUr2F~o!Q)。
2. even if 即使；尽管；纵然；
例句：Friendship means understanding, not agreement. It means forgiveness, not forgetting. It means the memories last, even if contact is lost.
友情是理解，不是妥协；是原谅，不是遗忘_Tm_T2QQ61M。即使不联系，感情依然在-5y^y.nyxD-X+klxv1MJ。
3. would rather do sth. 宁愿；宁可；
例句：I would rather stay at home alone.
我宁愿独自呆在家Sh!p&-c[hcM&!oery8。
4. in one's opinion 在…看来；据…的意见；
例句：The book is, in Henry's opinion, the best book on the subject.
依照亨利的看法，这本书是关于该主题的最佳著述(2G]6z([WG^JOU.8J;~B。