Underproper
vt. 从下面支撑；支持；维持：
🗣️ 情景例句
Where do people hang out on the weekend?
大家周末都去哪儿玩？
I underestimated the cost of the journey.
我对旅行费用估计不足。
I can't believe a word you say.
我才不信你呢！