be much concerned about sth 对……非常担忧
Nobody is watching, and if they happen to be, they are far less concerned with what you are doing and much more focused on what you are thinking about them.
没有人看，如果他们在看，他们更少关心你在做什么，更专注于你怎么看他们呢。
You may be concerned about the application's memory usage pattern: Is it using too much memory?
您可能关心应用程序的内存使用模式：是否使用了太多内存？
"There is sufficient evidence to be concerned about phthalates, and it's prudent to reduce exposure as much as possible," Engel said.
“有足够的证据可以引起人们对邻苯二甲酸酯的担忧，应该尽可能减少接触机会，”恩格尔警告说。
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