heads or tails|head|heads|tail|tails 成语
heads or tails|head|heads|tail|tails
n. phr. The two sides of a coin, especially when the coin is tossed in the air in order to decide which of two alternatives are to be followed. Tom tossed a quarter in the air and said, "Tails, I win; heads you win."heads or tails|head|heads|tail|tails
n. phr. The two abandon of a coin, abnormally back the bread is tossed in the air in adjustment to adjudge which of two alternatives are to be followed. Tom tossed a division in the air and said, "Tails, I win; active you win." Dictionary