Sorry, I couldn't help overhearing, did you mention something about...
对不起,我无意中听到你们的谈话,你们是不是提到...
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。