我的俄国朋友安德烈在离开家之前，总是环顾四周，沉思片刻。
My Russian friend, Andrey always looks around and thinks for a while before leaving home.
如果我在离开家之前浇了水，这些花就不会死了。
The flower would not have died if I had watered them before I left home.
那你在我离开家之前就应该告诉我。广州的天气还很暖和。
Well you should have told me it was cold before I left home. The weather is still warm in Guangzhou.
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