be my guest

'Can I take a look at the report?' 'Be my guest—it's right there on the desk.'“我能看一眼这份报告吗？”“请便——就在那边的桌子上。”

'Mind if I use the meeting room for an hour?' 'Be my guest—it's free until three o'clock.'“介意我用一下会议室一个小时吗？”“请便——三点之前它都空着。”