Alkylene
亚烃基, 烯化, 烷撑
🗣️ 情景例句
Where are you going during Summer vacation?
暑假你打算去哪儿？
Get out of here! Out of my way!
给我滚！闪一边去！
Sweden has evolved an excellent system for protecting the individual citizen from highhanded or incompetent public officers.
在瑞典，已逐渐形成了一种完善的制度以保护每个公民不受专横的和不称职的政府官员的欺压。