Deop
diesel engine oil advisory panel,柴油发动机顾问小组
🗣️ 情景例句
You'd better be careful.
你要小心一点。
The world is a ladder for some to go up and some down.
人间犹如一架梯，有人缘梯上升，有人顺梯下降。
A burst of activity associated with the laying of submarine cables soon confirmed the Challenger's observation that many parts of the ocean were two to three miles deep,
海洋中很多地方可深达两三英里，