snifting

例句：

1. 2.
   指
2. 3.
   用鼻子
3. 1. She was sniffing the air for any scent of danger.
   她正在嗅探空气中的任何危险气味。
4. 2.The dog is sniffing around the house, looking for a treat.
   狗在四处嗅探，寻找食物。
5. 3. The cat was sniffing at the mouse, ready to pounce.
   猫正嗅着老鼠，准备扑上去。