Triethylene
三乙烯
🗣️ 情景例句
San Francisco General Hospital.
这里是旧金山总医院。
It's a pain in the neck having to meet them at the airport.
必须到机场去接他们，真讨厌。
We've seen several members of the family since we arrived my grandfather and my aunt and uncle.
自我们回来以后已经见到了好几个家庭成员祖父、姑姑和叔叔。