Dialkylene
二烯基
🗣️ 情景例句
I think Michelle is better off staying where she is.
我觉得Michelle待在原地比较好。
Sorry, but I have to go. Peace!
对不起，我必须走了，祝无恙！
Betty and Susan are talking on the telephone.
贝蒂和苏珊正在通电话。