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光钝化作用; 光灭活作用
🗣️ 情景例句
How much for a one-way ticket to New York?
去纽约的单程票多少钱？
There's many a good tune played on an old fiddle.
老当益壮。
Her husband had built up a large business during his lifetime, and when he died ten years ago in 1989 he left all his money to his wife.
她的丈夫一生中逐步建立起一家大商行，而当他10年前即于1985年去世后，他把全部财产留给了他的妻子。"