The final charge against schools such as those run by KIPP is that their longer hours and the demands those place on teachers (see Lexington) make them impossible to sustain, let alone replicate.

对于类似由KIPP运作的学校的最终指控在于，他们对老师长工作时间和高教学要求的标准使得学校很难维系，更不用说复制这种模式了。

youdao

Keeping up with every RSS feed item and tweet is hard enough for anybody, let alone someone trying to run a business.

对大家来说，密切跟踪rss订阅是件困难的事，那简直是让个人单枪匹马去做业务。

youdao

Among the 2, 900 known snakes, few are dangerous, let alone lethal, to humans, but prejudices run deep.

在已知的2900种蛇中，很少是危险的，能使人致命的就更少了，但人类对蛇的偏见依然很深。

youdao

Privatisation is too politically sensitive, as is allowing private firms, let alone foreigners, to run riot over India's coal beds.

ECONOMIST: Energy in India

Since most people doubt the existence of such things, it seems a rum way to run a parish poll, let alone to decide an important constitutional issue.

ECONOMIST: Massaging the message

First of all, the FDIC lacks the staff to oversee, let alone run, several large and complex banks which may become insolvent.

WSJ: Banks Need Fewer Carrots and More Sticks