Tetraspermous
a. [植]四种子的
🗣️ 情景例句
It's so nice of you to come.
你能来真好。
I generally agree with you.
我大体上同意你的看法。 九、 Asking For Help 请别人帮忙
It was from the study of these that so much was learnt about the interior of the earth.
正是从这两种波的研究中，我们可以了解到地球内部的许多情况。