Dipleurula
[動]對稱幼蟲
??? 情景例句
I have to postpone our appointment.
我要把我們的約會延期。
Certainly. And we also have test results that we're sure you'd be interested to see.
當然，同時我們也有測試結果，我們相信你們會有興趣看的。
Similarly, our own present primitive chemical rockets, though good enough to orbit men,
同樣，我們目前使用的原始化學火箭，雖然可以把人送入軌道，