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[电] 步测器
🗣️ 情景例句
The whole house needs re-painting.
整个房间需要重新粉刷。
My brother wants to learn how to dance.
我的兄弟想要学习跳舞。
When it has been decided where we are going to drill, we put up at the surface an oil derrick.
当确定钻孔地点后，我们就在那里竖起一个井架。