... Expense and control 费用和控制系统基础 Expense control plans 费用控制计画 Cost And Expense Control 费用控制 ...
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Parents who routinize child care are minimizing expense and maximizing their control.
使儿童看护规范化的家长最大程度地强化了控制,节约了支出。
However, efforts to control them are consistently undermined by the difficulty and expense of identifying mosquitoes-of which there are at least 3,500 species, many of them hard to tell apart.
然而,控制这些蚊虫的努力一直没有进展,关键在于鉴别蚊虫的难度和费用——至少有3,500种不同蚊虫,其中有不少很难加以区别。
However, efforts to control them are consistently undermined by the difficulty and expense of identifying mosquitoes-of which there are at least 3, 500 species, many of them hard to tell apart.
然而,控制这些蚊虫的努力一直没有进展,关键在于鉴别蚊虫的难度和费用——至少有3,500种不同蚊虫,其中有不少很难加以区别。
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