Pool depth
[机] 余铁深度
🧩 词语组成解析
pool
[pul]
n. 水池;石油层;（液体等的）一滩;共同储金;
vi. 使形成池塘或水洼;淤积;合伙经营;采（煤等）;
🗣️ 情景例句
When he came to the States five years ago, he had only forty dollars in his pocket.
五年前他来美国时，口袋里只有40美元。
This price is subject to change without notice.
此价格可以不经通知自行调整。
The lady who is standing behind the counter.
站在柜台后面的那位女士。