get out of: 避免
Explore the world and get out of your comfort zone.
去探索世界吧，离开你的舒适地带。
Excuses are ways to get out of owning up to something.
借口是逃避承认很多事情的方式。

allergic to: 对…过敏
And he seems allergic to journalists and their pesky questions.
而且他似乎对记者和他们询问的棘手问题过敏。
Maybe you are allergic to some ingredients in it.
可能你对这种面霜中的某种成分过敏。

let alone 更不用说，还不算
Protecting the air, let alone improving it, is a challenge.
别说要改善空气了，现在就是保护它也很难。
Tourists need have no truck with maldivian culture or currency, let alone its politics.
游客们不必与马尔代夫的文化、货币打交道，更别说政治了。