at the first sign

at the first sign sign at the first desk "at the first sign of trouble"是什么意思? look at the sign的同义句 初三英语词汇运用,Look at the sign onlY the firsT sigN of lifE .{YTNE→ENTY【Enty】} first of all first the first at first的区别 at the first,at first与first的区别 PLEASE SIGN IN FIRST. 1.look at the sign on the right , 比较first,at first,in the first place sign your names at the students' union; sign up for it ; 都是报