a butterfly net的用法和样例：
- Where can I buy a butterfly net?
- Take along a butterfly net to catch flying insects and tweezers to pick up bugs.
- Ms Padel seems to have caught the quintessence of the man's character, as if in a butterfly net.
- A butterfly must not be confused with a moth.
- I think this worm is a larva of a butterfly.
- She caught a butterfly in her net.