Polyborane
聚硼烷
🗣️ 情景例句
Oh, leaving home is part of growing up.
呵 ，离开家是成熟过程的一部分。
Is that a car?
那是一辆小汽车吗？
On the other hand, I felt sad that I wasn't able to tell my grandparents that we were safe.
另一方面，我为不能告诉我的祖父母我们十分安全而感到难过。