Underpinner
n. 支承用的支撑,支柱
🗣️ 情景例句
OK, let me think.
好， 让我想想。
You should be ashamed of your bad manners.
你应该对自己的不礼貌感到羞耻。
My shoe has been pressing against my foot, so it hurts a bit.
我的鞋一直挤着脚，所以脚有点疼。