Plumming
n. 【植物】李屬(Prunus)植物；洋李；李；梅\\na. 人所希望的；有利的；可選擇的
??? 情景例句
Could you please say that again?
能再重復一遍嗎？
Who is this?I don't recognize your voice.
你是誰?我不認出你的聲音。
For one thing they keep the water clean.
一來，水下植物可以保持水的清潔。