Psis
(psi 的复数) n. 希腊字母的第23个字母\\n[机] 磅, 平方寸
🗣️ 情景例句
About forty minutes, I think.
我想大约40分钟。
Did you phone him yourself?
你自己亲自打电话给他吗？
In 1928 some porpoises were photographer working like beavers to push ashore a waterlogged mattress.
1928年，有人拍摄到了海豚像海狸一样把浸透水的床垫推上岸的情景。