lubricate造句

Mineral oils are used to lubricate machinery.
矿物油被用来润滑机器。

Do not use emollients or oils to lubricate the skin.
不要用润肤剂或油类来润滑皮肤。

You should lubricate the wheels of your bicycle once a month.
你应该每个月给自行车轮子加一次润滑油.

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