Pentacene
并五苯
🗣️ 情景例句
All we have to do now is shake hands.
现在我们所该做的只是握手了。
The doctor said it's just a litter heat rash, There's nothing to worry about.
医生说只是出疹子，不需要担心。
Since the sea covers the greater part of the earth's surface,
既然海洋覆盖着地球的大部分表面，