Servomachanism
[计] 伺服机构
🗣️ 情景例句
I'm ready, Grandpa. You name the day.
我准备好啦 ，爷爷。哪一天随你挑吧。
Say not all that you know, believe not all that you hear.
莫道全所知，莫信全所闻。
He's here on a visit from Guangzhou.
他从广州来这里参观访问。