Cách sử dụng
The expression "tie off" means to secure something by tying it tightly with a knot at the end or to finish a task or activity. It can be used in various situations, such as tying off a balloon, tying off a rope, or tying off a thread after sewing. It can also be used in a medical context, such as tying off a blood vessel to stop bleeding. Overall, it is used to ensure that something is secure and complete.