Definition (專注)
To carefully focus one's sight, hearing, or thought on something or someone.
注意(某人、某事)
During meetings, she always listens carefully and pays attention to every word the speakers say.
在會議期間,她總是仔細聆聽並注意演講者說的每一個字。
The teacher reminded the students to pay attention during class and not get distracted by other things.
老師提醒學生們上課時要專心,不要被其他事情分心。
If you don't pay attention to the road while driving, you could have an accident.
如果你開車時不注意路況,可能會發生事故。