他的直系亲属都在场，这显然起到了让他镇定的作用。The presence of his immediate family is obviously having a calming effect on him.这样很可能对他产生一种镇定的效用.It is likely to have a soothing effect on him.他抬头望着那久经日晒雨淋的旧草帽底下那张严厉而又镇定的脸,细声地说.He spoke whisperin...

“镇定的”的英语可以翻译为：calm，composed，[化] sedative，undisturbed，collected ...