Balljoint
n. (肩,膝等的)球状关节, 杵臼关节
🗣️ 情景例句
I would be interested in a ten-day trip around Christmas time.
我有兴趣在圣诞节前后去玩10天。
Slow help is no help.
帮忙不及时，等于不帮忙。
I've come to make sure that your stay in Beijing is a pleasant one.
我特地为你们安排使你们在北京的逗留愉快。