Bidirectional current
[电] 双向电流
🧩 词语组成解析
[计] 双向的
🗣️ 情景例句
I've never been to the aquarium
我从来没有去过水族馆
If I had had time,I would have called you.
如果我有时间，我就打电话给你了。
I'm very disappointed.
真让我失望。