Dmba
abbr. dimethylbenzanthracene 二甲基苯蒽
🗣️ 情景例句
Didn't you give them to Richard?
你不是把它们交给Richard了吗？
Could you take a picture for me?
你能帮我拍照吗？
At a special swimming pool in Los Angeles, children become expert at holding their breath under water even before they can walk.
在洛杉矶的一个特设的游泳池里，孩子们甚至在还没有学会走路时就已经能熟练地在水下屏住呼吸了。