What time does it get dark in summer?
夏天什么时候天黑?
Usually, you must sleep for at least seven to eight hours every day, or you will get dark circles under the eyes.
通常,你必须每天至少睡7-8小时,否则你会有黑眼圈。
It had begun to get dark, and Peter knew that it was time to go.
天开始黑了,彼得知道他该走了。
And by the time I get home, it's dark.
我回家的时候,天黑了。
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