提示：点击例句中的单词，就可以看到词义解释

How often do we make choices that are valueless ?

我们是否经常做一些毫无价值的选择？

It is a valueless book for me .

对我来说,这是一本没有用的书.

Without certification , they are valueless on the legitimate market .

没有通行证的钻石在合法交易市场上一文不值。

Human life seems to be increasingly valueless .

人的生命似乎越来越半途而废。

Lenders had to make write-offs , most of the new economy stocks proved valueless and many structured products became unmarketable .

贷款机构不得不对资产进行冲销，大多数新经济股票被证明是不值钱的，许多结构性产品卖不出去。