这项计划最烦人的地方就是它很令人困惑
-------- What's most upsetting about the plan is that it is very puzzling / confusing
--------- What's most upsetting about the plan is its puzzle / confusion
这项计划最烦人的地方就是它很令人困惑
-------- What's most upsetting about the plan is that it is very puzzling / confusing
--------- What's most upsetting about the plan is its puzzle / confusion