只透彻理解这些技术中的一个或两个就是一项艰巨任务，而正确使用所有这些技术就会使您成为专家。
Understanding even one or two of these APIs thoroughly is quite a task; using all of them correctly makes you a guru.
要雇用或爱那些高举仇恨之镜的人是一个非常艰巨的挑战。
It is very challenging to hire someone or love someone who fights you by holding up a mirror of hatred toward themselves.
开始管理或领导团队可能有一个非常艰巨的前景。
Starting to manage or lead a team can be a very daunting prospect.
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