Prelaser
a. 激光照射前的\\nn. 激光敏感剂
🗣️ 情景例句
This place is a mess.
这地方真够乱的。
According to the latest census,our population has increased.
根据最近的人口普查，我们的人口增加了。
Sally was very excited because she had never travelled on a train before.
萨莉非常激动，因为她从未乘过火车。