您要查找的是不是：
- 换所气难吗? Is it difficult to control my breathing?
- 吗 morphine
- 难 problem
- 自动换行 word wrap
- 很难吗? Is it difficult?
- 所示 shown
- 别担心,万事开头难吗。 Don't worry.All things are difficult before they are easy.
- 所用 used
- 难的 hardy
- 曝气 aeration
- 是吗 is that right
- 补气 air supply
- 换证 change certification
- 正如他所说的，珠宝不翼而飞了 It was even as he said: the jewel was gone.
- 难过的 sorry
- 板式换热器 plate exchanger
- 胀气 flatulence
- 你好吗？ How are you?
- 这家小公司推出新产品获得成功，因为这种新产品恰好是大众所需要的。 The small company hit the mark with its new product because it was just what the public wanted.
- 难看的 malformed
