1. When you play badminton, your arms must not be stiff. Your arms and fingers need to be nimble to play badminton well.2. Judging by the dead man's body's stiffness we think he has been dead for over a week.
你剛剛說了甚麼? 不好意思，我放空了一下。 (請填空)
What did you just say? I am sorry. I just lost m train of thought.