-
So specifically, today we're going to talk about covalent bonds.
特别地，今天我们要专门讲一讲共价键。
应用推荐
$firstVoiceSent
- 来自原声例句
So specifically, today we're going to talk about covalent bonds.
特别地，今天我们要专门讲一讲共价键。
应用推荐