Underproper
vt. 从下面支撑；支持；维持：
🗣️ 情景例句
A dollar is valued at eight point two RMB yuan.
一美元价值8.2元人民币。
It's ten minutes to four.
现在差十分四点。
Use your head a little, sir!
请用你的脑袋想一想，先生。