playmate
词根词缀：
bedmate n. 同床的人
bed 床 + mate 人 → 同床的人
flatmate n. 合住一套公寓的人
flat 公寓 + mate 人 → 合住一套公寓的人
playmate n. 玩伴；游戏伙伴
play 玩 + mate 人 → 玩伴；游戏伙伴
schoolmate n. 校友
school 学校 + mate 人 → 校友
shipmate n. 同船旅客；同船船员
ship 船 + mate 人 → 同船旅客；同船船员
teammate n. 队友
team 队伍 + mate 人 → 队友
数据来源：新东方英语词汇速记大全
相关例句：
For Yui, will she have the same opportunities as her playmate?
对Yui来说，她是否有玩伴那么多的机会？
She would look to see if a playmate awaited her there, keeping company with the old man.
它会来看看是否有个玩伴在那里等着它，陪着那位老人。
And the 37-inch high horse is more than happy to help her playmate.
而37英寸高的小马戴西也非常乐意帮助自己的玩伴。
A three-year-old might need help in understanding that other children feel pain just as he does, and that hitting a playmate over the head with a heavy toy requires an apology.
一个三岁的小孩可能需要帮助才能理解其他孩子如他一样感觉到的疼痛，同时理解用一个重玩具打一个伙伴的头是需要道歉的。
Wilbur Myers, my frequent playmate on Hawthorne Avenue, sat next to me in school.
威尔伯·迈尔斯（Wilbur Myers）是我在学校里的邻座，他也是我在霍索恩大街上的经常的玩伴。
His chief playmate was his dog.
他的主要玩伴是他的狗。