Cavitary
腔的, 空洞的
🗣️ 情景例句
I'm not sure I get your point.
我恐怕没听懂你的意思。
Strong reasons make strong actions.
理由充足，行动就坚决。
The child learning to see, first distinguishes only two-dimensional shape;
正在学看东西的儿童起初只会分辨二维形态，