重点讲解：
1. kind of
稍微；有几分；有点儿；
eg. It was kind of sad, really.
有点儿让人难过，真的。
eg. She wasn't beautiful. But she was kind of cute.
她不漂亮。但她有几分可爱。
eg. It kind of gives us an idea of what's happening.
这让我们大概了解了正在发生的事情。
2. touch
这里表示：润色；装点；修饰；
eg. They called the event 'a tribute to heroes', which was a nice touch.
他们把这一活动称为“向英雄致敬”，这可是加分之举。
eg. Small touches to a room such as flowers can be what gives a house its vitality.
房间里放些诸如鲜花之类的小点缀可以给家里带来生气。
3. be able to do sth.
（因具有品质或技能）能做到…的；（因有足够的自由、权力、时间、财力等而）可以…的，能够…的；
eg. The company say they're able to keep pricing competitive...
该公司说他们能够使定价保持竞争力。
eg. You'll be able to read in peace.
你就能安心地读书了。
eg. It would be nice to be able to afford to retire earlier.
无后顾之忧而能提早退休当是件幸事。
