Bimatron
毕玛管
🗣️ 情景例句
We'll be looking for your book.
我们会去买你的书。
While Mike was an only child, he would amuse himself with his toys.
麦克还在孩提时，常常独自玩玩具取乐。
Once the oxygen content of the air had risen to 25% it was ready to burn.
一旦氧气在空气中的含量达到25%，它就要燃烧。