Knuckle of coupler
[机] 关节联结器
🧩 词语组成解析
knuckle
[['nʌkəl]]
n. 指节, 蹄爪, 膝关节\\nv. 以指节打, 以手指射
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
coupler
['kʌplə]
n. 连结者，配合者;车钩;
🗣️ 情景例句
He's on the phone.
他在电话上。
The husband mows his lawn on Saturdays.
那位丈夫在每个周六修剪草坪。
There are a lot of people in the swimming pool.
游泳池里挤满了人。