specialize:to become an expert in a particular area of work, study or business; to spend more time on one area of work, etc. than on others 专门研究(或从事);专攻 verb
He specialized in criminal law.
他专攻刑法。
Many students prefer not to specialize too soon.
很多学生不愿过早地确定专业。
The shop specializes in hand-made chocolates.
这家商店专营手工制作的巧克力。
amazing:very surprising, especially in a way that makes you feel pleasure or admiration 令人大为惊奇的;(尤指)令人惊喜(或惊羡、惊叹)的
an amazing achievement/discovery/success/performance
惊人的成就/发现/成功/表演
That's amazing, isn't it?
真是令人惊叹,是不是?
It's amazing how quickly people adapt.
人适应环境的速度之快真是惊人.