Cosmene
[化] 波斯菊萜; 2,6-二甲-1,3,5,7-辛四烯
🗣️ 情景例句
We haven't had any complaint of this kind. Is there any evidence.
我们还从未听过这样的抱怨。有什么证据呢？
One thorn of experience is worth a whole wilderness of warning.
一次痛苦的经验抵得上千百次的告诫。
He's going to school.
上学。