without strain的意思|示意
美 / wiˈðaut strein /
英 / wɪðˈaʊt stren /
毫不费力地
without strain相关短语
1、 neck held without strain 弛颈
2、 neck held erect without strain 弛颈
3、 Strain without L-glycerin-3-calcium 甘油缺陷性菌株