S-11:shed/throw light on/upon 指点迷津
A:I'm stuck on this problem. Can you help me?
A:我被这道题难住了，你能帮帮我吗？
B:OK. let me see. Ah, it's so hard. I am sorry I can't solve it. Why not ask Tom? He's sure to be able to shed light on that.
B：好的，让我看看。啊，太难了，我也不会做，为什么不问问汤姆？他肯定能给你指点一二的。
A:Good idea.
A:好主意。
