Centreboard
n. 船底中心垂直升降板, 装有升降板的小船
📖 牛津释义
centreboard
n moveable board that can be raised or lowered through a slot in the keel of a sailing-boat to prevent drifting 中插板（船底中心防止船漂移的垂直升降板）. =>illus at dinghy 见dinghy之插图.
🗣️ 情景例句
I'd really like to.
我真的希望帮忙。
I am sorry Mr. Chen is unavailable, would you like to speak to anyone else?
抱歉陈先生不在，你要不要跟其他人讲话？
But they suddenly became the parents of quintuplets,
但是他们出人意料生了个五胞胎，