这是我在中国的第二年，之前从来没有人查过我的证件，有时候随身携带证件很麻烦，因为你会忘记。
I'm in my second year in China, but they never asked me about my papers, and sometimes it's so difficult to bring your papers with you, because you'll forget it.
如果你忘记了答案的一部分，这是很容易让你丢掉，麻烦恢复。
If you forget part of the answer, it's easy for you to lose track and have trouble recovering.
如果你忘记了答案的一部分，这是很容易让你丢掉，麻烦恢复。
If you forget part of the answer, it's easy for you to lose track and have trouble recovering.
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