Decarburizer
脱碳剂
🗣️ 情景例句
because we have a little surprise for you today.
因为今天我们要给各位一项惊喜。
It was after dark when we got back,and we were all tired.
我们回来时天已经黑了，并且我们都很疲倦。
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。