Because it's easy
轻松───relaxed;它───it
His face relaxed in a smile.───他的表情在微笑中变得轻松了.
For the first time since his arrival he relaxed slightly.───自从他来了之后这是他第一次稍微放松一点儿。
Far from being relaxed, we both felt so uncomfortable we hardly spoke.───我们两人非但没有放松，反而都感觉很不自在，几乎没有说话。
He relaxed his grip on her arm.───他本来抓着她的胳膊，现在松开了手。
His words slowly relaxed her threatening attitude.───他的言语慢慢地缓和了她的威胁态度.
Jennifer wasn't yet totally convinced that she'd profit from a more relaxed lifestyle.───珍尼弗还不完全相信更轻松的生活方式会对她有好处。
He appeared relaxed and confident before the match.───比赛前，他显得镇定而自信。
He must have been hoping for a relaxed time. No such luck.───他一定是一直想放松一段时间，可就是没这个命。
Jill has such a lovely relaxed temperament.
Everybody was in a very relaxed and jolly mood.
You need to ensure that a patient feels relaxed enough to discuss things fully.
After work she relaxed with a cup of tea and the newspaper.
She was in a relaxed, confident mood.