目前边际税率与平均税率仍然在随收入增长，但是总的税收结构比起上一代要更为稳定。
Marginal and average tax rates still rise with income, but overall tax structures are much flatter than they were a generation ago.
如果你听说过他们，你会知道那曾经是一群随性的家伙(同时是一群随性的酒鬼)，粗糙，未经雕饰——他们早期的作品总给人一种濒临崩溃的感觉。
If you've ever heard them, you know that at their best, they were sloppy (often sloppy drunk), ragged, unpolished - their early songs always sound just on the verge of falling apart completely.
棉花总吸氮量随著追氮量的增加而增加，但花铃期吸氮量占总吸氮量的比例呈下降趋势。
The total absorption of nitrogen increased with the amount of nitrogen topdressing, but the proportion of absorption nitrogen during the blooming period to total nitrogen were downtrend.
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