W-6：worth its weight in gold 非常有价值 A:Thanks a lot. Youve been worth your weight in gold. A:太感谢你们了，你们帮了我们的大忙。 B:Dont mention it. Its our pleasure. B:别客气了，这是我们的荣幸。
W-6：worth its weight in gold 非常有价值
A:Thanks a lot. You've been worth your weight in gold.
