What are the names in Chinese for "Barbell","Gym apparatus", "Set", "Repetition"? Thanks a lot! Here are some sentences I'd like to use: "Can you spot me at the bench press/squat? I'd like to do 5 repetitions" "Do you use this apparatus/dumbbell/barbell?" "How many sets left for you to do?" "Can I take this disk (I mean barbell disk) for one set?" "Have you already finished your flexion/extension/pull/press/bend/sideway swing exercises?"