"父母的卧室" 的英文是 "parent's bedroom"。
其中 "parent" 是 "父母" 的意思，是名词。"bedroom" 是 "卧室" 的意思，是名词。
例句：
I will clean the parent's bedroom today. (我今天要打扫父母的卧室。)
The parent's bedroom is at the end of the hallway. (父母的卧室在走廊的尽头。)
Can you please keep the noise down in the parent's bedroom? (请在父母的卧室里尽量保持安静好吗？)