Vacant channel
[计] 空余信道
🧩 词语组成解析
🗣️ 情景例句
Mrs. Martinelli.
Martinelli太太。
In secondary school, children study mathmatic、phsicas and chemistry.
中学的小孩会读到数学、物理和化学。
if there is any effect of noise upon mental health it must be so small that present methods of psychiatric diagnosis cannot find it.
如果噪音对精神健康有影响的话，那也一定是微乎其微，以致现代的精神病诊断方法还发现不了。