先用湿海绵擦一下玻璃，然后用一块干布擦干净。

Sponge the glass, then clean with a dry cloth.

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用扭曲的海绵大力搓洗玻璃。

Scrub the glass with a wrung-out sponge.

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用扭曲的海绵大力搓洗玻璃。

Scrub the glass with a wrung-out sponge.

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