无法表达

• beyond expression

例句

1. 我无法表达我接到他的信有多高兴。
   I cannot express how glad I am to hear from him.
2. 这一突然不幸对你一定是一沉重打击。我无法表达我的悲痛之情。
   I know the suddenness of it must have been a dreadful shock; and I just can't tell you how sorry I am.