P-trap
[建] P型存水彎
?? 詞語組成解析
trap
[tr?p]
vt. 誘騙;使受限制;困住;使（水與氣體等）分離;
n. 圈套;（對付人的）計謀;（練習射擊用的）拋靶器;（捕捉動物的）夾子;
vi. 設陷阱;裝捕捉機;設圈套;
??? 情景例句
That's all right.
沒關系。
When the fruit is scarcest, its taste is sweetest.
物以稀為貴。
What shall we do today? The weather's not very good.
我們今天該做什么呢？天氣很不好。