Maybe he can do the same thing for your grandfather.
也许他能为你爷爷做同样的事。
If there were no clouds, we should not enjoy the sun.
吃得苦中苦,方知甜中甜。
From this we get the expression to make a beeline for someone or something, which means to go quickly along a straight direct course for someone or something.
从这里我们得到一条短语"to make a beeline for someone or something,意思是迅速地沿着一条直线向某人或某物走去。