Prelaser
a. 激光照射前的\\nn. 激光敏感剂
🗣️ 情景例句
How many days will it take for my mail to reach its destination?
我的信件到达目的地要用几天？
Please make sure that the goods be protected from moisture.
请保证货物不受潮。
It's very smart.Short skirts are in fashion now.
它很时髦。短裙现在很流行。