After the warehouse accident, the scab on Tom's hand took two weeks to heal.

倉庫意外之後,Tom手上的痂花了兩週才癒合。

The company nurse told employees not to pick at a scab from minor cuts.

公司護理師提醒員工,小傷口結的痂不要去摳。

During the business trip, I covered the scab on my elbow before the client meeting.

出差期間,我在和客戶開會前把手肘上的痂遮起來。