Underused
a. 未充分利用的
✅ 同义词
🗣️ 情景例句
Excuse me? What did you say?
对不起，你说什么？
Promises are like piecrust, made to be broken.
诺言好似馅饼皮，做来便是为咬碎。
many of them serious and senior scientists---- who dream of sending people to it.
其中的不少人是认真和资深的科学家，他们一直梦想着把人送上火星。