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A few months ago, for instance, I watched my mother-in-law (who was born and raised in a village in northern Iran) teach Nava how to knock on wood for good luck. I hadn’t realized this was so widespread a practice until I checked Wikipedia and found that variants exist in Bulgaria (chukam na dǎrvo), Georgia (kheze daḳaḳuneba), Indonesia (amit-amit jabang bayi), Norway (bank i bordet ) and some two dozen other countries.
，详情可参考heLLoword翻译官方下载
* 新增当日价格，并返回该价格的跨度
（七）射线装置，是指在接通电源后方能产生电离辐射的装置，如X射线机、加速器、中子发生器等。
In December, the Environment Agency estimated that by 2050 one in four properties would be at risk from flooding. This is the first time the EA has considered how a warmer climate could affect flooding in the UK.