对于仅仅三个月大的婴儿，他们能够从其它声音中辨认出人类的声音，并能察觉悲伤的情绪。奇怪的是，快乐的声音对他们不起作用。
For at just three months old, babies can tell human voices from other sounds - and work out when someone is sad. Curiously, happy sounds just wash over them.
他们说，日本1990年代的长期衰退已经证明，这种发放现金的作法对刺激需求不起作用。
They say Japan's long recession in the 1990's showed such handouts to be ineffective in stimulating demand.
这几个旅行者拒绝合作，对他们的警告不起作用，因此他们有可能故意这么做，为的是制造国际社会对于伊朗的公众舆论。
The lack of co-ordination on the part of these hikers, particularly after being forewarned, indicates an intent to agitate and create publicity regarding international policies on Iran.
戴维在中学和大学的优异成绩对人事部门不起作用，他们需要的是有实践经验的人。
David's success at school and college cut no ice with the HR. What they wanted was a man with practical experience.
蚯蚓父母们使劲了各种办法但丝毫不起作用：他们进行了深入的交谈，他们对无理取闹视而不见，他们不插手宝宝的事。
Earthworm parents tried every way to influence their babies: they talked deeply into them, they shut eyes to their troubles, and they stop helping them... but in vain.
蚯蚓父母们使劲了各种办法但丝毫不起作用：他们进行了深入的交谈，他们对无理取闹视而不见，他们不插手宝宝的事。
Earthworm parents tried every way to influence their babies: they talked deeply into them, they shut eyes to their troubles, and they stop helping them... but in vain.
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