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。
《柯林斯高阶英汉双解学习词典》
You had me worried for a moment─I thought you were going to resign!
你可让我担心了一阵子,我原以为你要辞职呢!
《牛津高阶英汉双解词典》
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》
