Nitrador
二硝甲酚
🗣️ 情景例句
You're OK, Dad.
你真好，爸爸。
The Senator acceded to his defeat before the end of the election.
那位参议员在选举结束以前就承认落选了。
The inner workings of our own brains we feel to be uniquely worthy of investigation,
我们觉得，只有我们大脑内部的活动情况才值得研究，