重点讲解：
1. as well 也；还；
例句：The sideshows will fetch in the people as well.
幕间穿插的表演同样可以招徕看客。
2. at the same time 同时；
例句：You've got to be firm, but at the same time you must be sympathetic.
你态度要强硬，但还必须有同情心。
3. pick up 发现；找到；
例句：We must pick up the good apples from the bad.
我们必须从坏苹果中挑出好的。

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