Optocoupler
光隔离器; 光耦合器
🗣️ 情景例句
He says it always brought him good luck on the baseball team.
他说 ，当年他在棒球队时这手套总是带给他好运。
You can't make omelets (or omeletts) without breaking eggs.
有失才有得。
Hello, Li Lei.
你好，李磊！