Symmetrical alternating quantity
[电] 对称交变量
🧩 词语组成解析
a. 交互的\\n[医] 交替的
🗣️ 情景例句
If you need any help, I'll be ust over here.
如果你需要任何帮助，我都随时待命。
I'm not really sure.
我不太清楚。
The place consisted of a straggling unmade road which was lined on either side by small houses.
这儿有一条未经修筑的弯弯曲曲的道路，路两边排列着一些矮小的农舍。