S-trap
s形下水管存水弯
🧩 词语组成解析
trap
[træp]
vt. 诱骗;使受限制;困住;使（水与气体等）分离;
n. 圈套;（对付人的）计谋;（练习射击用的）抛靶器;（捕捉动物的）夹子;
vi. 设陷阱;装捕捉机;设圈套;
🗣️ 情景例句
Well ...
好……
How long have you been studying English?
你学英语多久了？
Combining exercise with the diet may be the most effective way to lose weight.
运动与节食结合也许是减肥最有效的途径。