Bidirectional current
[电] 双向电流
🧩 词语组成解析
[计] 双向的
🗣️ 情景例句
My stomach growls at me when I'm hungry.
我的肚子在咕噜咕噜地向我发牢骚呢！
How many bags are you going to get?
你要取几袋？
'You see.I've forgotten my key.'
“您瞧，我忘带钥匙了。”