Dia.
na. 同“diameter”；“di.”的变体\\n
🗣️ 情景例句
The water's pretty deep here.
这里水相当深。
What month is this?
现在是几月份？
it naturally limits all those engaged in carrying it out from effective contact
那些从事科研的人员自然受到了限制。他们不能进行有效的接触