Defense program
un. 防御计划
🧩 词语组成解析
🗣️ 情景例句
Oh, not at all. We're still eating.
噢， 没关系 。我们还在吃着呢。
I hope you can find your book soon.
我希望你很快就找到你的书。
The platforms extend to a depth of over 100 feet under the sea.
平台深入海底100英尺。