Concentrate on 专心于，把思想集中于
Men are more likely to concentrate on a potential mate's face.
男性的注意力更多地集中在潜在配偶的脸蛋上。
Without kowtowing, you should concentrate on doing your own job well.
不用拍马屁，你应该专心把自己的工作做好。

Leave me alone!不要烦我
Just leave me alone.
让我一个人呆一会儿。
Are you honestly not gonna leave me alone?
你真的不能让我独自静一静吗?

flashback 闪回，倒叙; 药效幻觉重现
Oh,God! Kindergarten flashback.
天哪，幼稚园回忆重现
Then you can quickly flashback to your vacation anytime on the go.
这样你可以随时随地迅速回顾自己的旅行。