Her income was barely enough to maintain one child, let alone three.

她的收入养活一个孩子几乎都不够，更不用说三个了。

《牛津词典》

But persuading even these three, let alone others, to work together is proving extremely hard.

ECONOMIST: The opposition wants change, but what change?

Labour's Lord Barnett, who invented the Barnett formula when he was Chief Secretary to the Treasury in the 1970s, said he had not expected the mechanism to last for three years let alone 30.

BBC: Lord Barnett demands end to Scotland funding formula

Annual attendance has yet to climb back over three million, let alone four million.

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