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
Grandpa, can you come?
爷爷， 你能去吗？
He's a doctor.
他是医生。
A great many former pupils will be attending a farewell dinner in his honour next Thursday.
很多老同学都准备参加下星期四为他举行的告别宴会。