Eigenmode
本征模
🗣️ 情景例句
She's unhappy
她很不高兴。
There are only two minutes left.
只剩两分钟了。
In the 1970s, computers were common enough, but only in big business, government departments, and large organizations.
在70年代，计算机已经相当普及了，但只用在大公司，政府部门和大的组织之中，