Onb
[医][=o-nitrobiphenyl]邻-硝基联苯
🗣️ 情景例句
Richard, did you go to the Davis Aerobics class today? Richard
你去上Davis有氧运动健身课了吗？
Riches have wings.
财富难保。
On this occasion, however, it had slowed down considerably.
然而这一次它的速度慢多了。