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The best time to plant a tree was 20 years ago. The second-best time is now.
种一棵树最好的时间是20年前,第二好的时间是现在。
When you arrive at your room in a hotel, locate the emergency exits. It only takes a minute.
To be born is to be wrecked on an island.
The study of automorphic forms is a journey into the heart of number theory.