避免使用磨砂皂，清洁颗粒，收敛剂及竭尽搓洗。
Try to avoid abrasive soaps, cleansing granules, astringents, and vigorous scrubbing.
你不需要朝某个特定的方向刷，只要尽量把残留的食物颗粒清洁出来即可。
You don't have to brush in a certain direction; just try to get any food particles out.
机油必须经过过滤，保持清洁，因为当发动机运行时有许多脏的颗粒进入机油，因此，机油滤清器必须有规律地更换。
Oil must be filtered and cleaned constantly since there are some dirt particles getting into the oil when the engine runs. Therefore, the oil filter must be regularly changed.
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