不值钱

• ten a penny
• a dime a dozen
• at a discount
• two a penny

例句

1. 这幢房子从来就不值钱，人们不喜欢住在教堂或坟场的对面。
   The house has never been much cop. People don't like living opposite a church or a graveyard.
2. 这位不诚实的商人掌握了一群易上当受骗的人，并开始向他们兜售自己那不值钱的货物。
   The dishonest businessman got hold of a sucker list and started out to sell his worthless stock.
3. 在印度，中尉和少尉军官多得不值钱，在哪儿也不会成为座上客。
   He found in India that subalterns were two a penny and invited nowhere.