careful是形容词
careful
美 /ˈkerfl/
英 /ˈkeəfl/
adj.
仔细的，小心的
比较级 more careful
高水平 most careful
双语例句：
Be careful! These antiques are very precious.
小心！这些古董非常珍贵。
Be careful when you are taking exams.
考试要认真仔细。
With the soaring unemployment rate, every family should be careful with living budge.
随着失业率的飙升，每个家庭都应该在生活开支上精打细算。