英汉词典

1. 废弃物；废旧物
    Junk is old and used goods that have little value and that you do not want any more.

junk

    e.g. Rose finds her furniture in junk shops...
           罗丝从旧货店买来了家具。
    e.g. What are you going to do with all that junk, Larry?
           这一大堆破烂儿你打算怎么处理，拉里？

2. 丢弃；抛弃；废弃
    If you junk something, you get rid of it or stop using it.

    e.g. Consumers will not have to junk their old cassettes to use the new format...
           消费者将不必丢弃他们的旧盒带而采用新的制式。
    e.g. The Socialists junked dogma when they came to office in 1982.
           社会党人1982年上台执政后，就把其政治信条弃之不顾。

3. 中国式（平底）帆船；舢板
    A junk is a Chinese sailing boat that has a flat bottom and square sails.