soap drawn wire

例句：

1. 1.The soap string was so thin that it could barely hold together.
   那根肥皂线太细了，几乎连在一起都做不到。
2. 2. She used a soap string to clean the windows.
   她用一根肥皂线来擦窗户。
3. 3.The soap string had been stretched too far and broke.
   那根肥皂线被拉得太长，断了。