Prelaser
a. 激光照射前的\\nn. 激光敏感剂
🗣️ 情景例句
Would you like something to drink?
你们要点什么饮料吗？
Don't forget to put stamps on your letter.
别忘了贴邮票。
Fine.we're saving a lot of money with it.
不错，节省了不少的钱，