转动棉棒时再轻一点。你弄疼我了！
B：Sorry. I got it.
对不起。我知道了。
rotate /r???te?t; ?ro?te?t/ v. 转动；旋转
gently /?d?entli/ adv. 温柔地；轻轻地；优雅地
用棉棒清理耳朵
clean one's ears with cotton swabs
A：You shouldn't always clean your ears with cotton swabs.
你不要经常用棉棒清理耳朵。
B：Why? Is it bad for ears?
为什么？它损害耳朵吗？
clean /kli?n/ v. 清理；清洁 adj. 清洁的；未用过的；无辜的
◆ be bad for sth 对……有害，对……不利
用棉棒擦药水
apply liquid medicine with a cotton swab
A：Stop using your hand! Apply the liquid medicine with a cotton swab!
不要用手！用棉棒擦药水！