gunk

例句：

1. 1.The trash can is full of junk.
   垃圾桶里都是垃圾。
2. 2. He threw away all the junk he found in the attic.
   他把阁楼里找到的所有垃圾都扔掉了。
3. 3.The old car was a real junk when we bought it.
   我们买那辆旧车时，它真是一堆废铁。