Ocb
abbr. 油断路器（oil circuit breaker）
🗣️ 情景例句
And have a nice afternoon.
祝下午玩得愉快。
When the fruit is scarcest, its taste is sweetest.
物以稀为贵。
This machine joins the metal pieces together, he said.
“这台机器把金属片焊接起来，”他说