toss up

A Toss-Up 面对难以决定的选择时，用“A toss-up”来形容：“My friend's travel proposal and my grandma's visit, both are tough decisions to make."Against the Clock 描述时间紧迫的情境：“为了赶在截止日期前完成工作，我必须争分夺秒。”All Greek to me 对于不理解的事物，可以用“all...