Defluorination
[化] 脱氟作用
🗣️ 情景例句
Nice to meet you, Mr. Baker.
很高兴见到你， Baker先生。
That radio's pretty loud. Could you turn it down, please?
收音机太响了，你能把声音开小一点吗？
but more often than not, the greater part of the journey is spent on roads with few service stations and too much traffic.
但旅行的大部分时间都花在路上，而且只有很少的服务设施，交通也很拥挤。