他说：“嗯，当他看到这本书和要求时放弃了。”
He said, "Well, he dropped out when he saw this book and the requirements."
当他读到酗酒之罪恶时，他放弃了阅读。
When he read about the evils of drinking, he gave up reading.
当这家杂志因开支太大，他不得不放弃这项事业时，他感到很惋惜。
He was sorry when the magazine became too expensive and he had to give it up.
当他想要放弃时，他想出了一个主意。
当他想要放弃时，他想出了一个主意。
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