Their daughter hadn't written to them for a long time, and they were rather worried.
女儿久未来信, 父母颇为悬念.
《现代汉英综合大词典》
His worried face relaxed into a smile of greeting when he recognized us.
他认出我们后,焦虑的面容缓和下来,露出欢迎的笑容.
《简明英汉词典》
If you're at all worried about his progress, do discuss it with one of his teachers...
如果你还有一点儿担心他的学业的话,一定要找一位教他的老师谈一谈。
柯林斯高阶英语词典