双语例句
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When installing the automatic waterer, make sure that the water pipes to the unit are below the frost line.
当安装饮水器时，务必确保水管到装置低于冻结线。
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Making sure that the waterer is correctly installed is the most important key in preventing problems later on.
确保饮水器正确安装是预防之后可能出现的问题的最关键的一点。