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二次电子导电摄象管
🗣️ 情景例句
She's smart and sensitive for her age.
就这样的年龄来说 ，她很聪明而且懂事。
He that spares the bad injures the good.
饶恕坏人便是伤害好人。
If you don't work, you will fail to pass the exam.
如果你不学习，你考试就会不及格。