书包，腰带，摄像头，耳麦的英文怎么拼

书包
school bag
腰带
belt
摄像头
cam / webcam
USB-Camera
PC-Camera
(不知你指哪个）
耳麦
earphone

书包，schoolbag
腰带，caestus
摄像头，camera lens
耳麦 ear phone

bag
belt
camers lens
earpiece

书包 =school bags
腰带 = belt，waist belt
摄像头 = camera lens，
耳麦 = earpeice, earphone