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录像盘
🗣️ 情景例句
It's extremely good of you to do this for me.
你帮我做了这件事，真是太好了。
Custom is the guide of the ignorant.
习俗是无知者的向导。
It is hard for us to realize nowadays how difficult it was for the pioneers.
我们今天很难想像昔日的登山先驱们是多么艰苦。