Step on flush water valve and pump at least 15 strokes with pump handle.

脚踩在进水阀门踏板上，同时将手摇泵摇压最少15下。

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Step on flush water valve and pump at least 15 strokes with pump handle.

脚踩在进水阀门踏板上，同时将手摇泵摇压最少15下。

youdao