giving the once-over是什么意思_怎么读

giving the once-over

1.Hi, Toutou, look at the boy over there. He is looks awesome isn't he? But obviously he is giving the once-over to another girl.喂，偷偷，快看那边的那个男生。他长得帅呆了！但是很显然他却在对另外一个女生暗送秋波。