Tetraethide
四乙基金属
🗣️ 情景例句
People who take less exercise seem more vulnerable to illness.
缺少运动的人对疾病的抵抗力就差。
Laugh at your ills, And save doctors' bills.
生病不忧虑，节省医药费。
That was a long time ago,wasn't it?
那是好久以前的事了。是吗？