介绍:
Day49
1他正在户外散步。
He is now taking a walk in the open air.
2孩子们在水中玩得很高兴。
The children enjoyed themselves playing in the water.
3你买房子花了多少钱?
How much did you pay for your house?
4我在这道数学题上花了两个小时。
I spent two hours on this maths problem.
要点：
①in the open air在户外
②支付pay→过去式paid;pay for---支付---
③sb pay+金钱+for sth某人付钱买
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