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重点讲解：
1. be able to do sth. 可以…的，能够…的；
例句：The athlete is able to jump two meters.
这位运动员能跳两米高。
2. even though 即使；尽管；纵然；
例句：We had to go out to work even though it was raining.
尽管下雨，我们也不得不出去工作。
3. or so …左右；…上下；
例句：We can seat you in five minutes or so.
五分钟左右我们就可以为您安排好座位。
4. go on 继续做；
例句：Rainy as it be, they go on with their work.
虽然是雨天，他们仍继续工作。
adj. 浓缩的；扼要的 vt. 浓缩（condense
