他甚至不会煮意大利面，更不用说准备一顿完整的饭了。

He can't even cook pasta, ___let ___alone prepare a full meal.

许多人连基础数学都困难，更不用说高等微积分了。

Many people struggle with basic math, ___let ___alone advanced calculus.

她连读邮件的时间都没有，更不用说写报告了。

She doesn't have time to read emails, ___let ___alone write a report.