In boxing, fighters are sorted by how much they weigh, so a small man is not asked to face a huge one. A flyweight sits near the bottom of that ladder: heavier than a strawweight, lighter than a bantamweight. In the old professional numbering, the top of the class is 50.80 kilograms (112 pounds — boxing still likes that pound figure).

In boxing在拳擊裡, fighters are sorted by how much they weigh選手是依照體重來分級的, so a small man is not asked to face a huge one這樣小個子的人才不用對上巨人。 A flyweight一個flyweight sits near the bottom of that ladder排在這個分級的接近底部: heavier than a strawweight比strawweight（草量級）重, lighter than a bantamweight比bantamweight（雛量級）輕。 In the old professional numbering在舊的職業分級裡, the top of the class is這個量級的上限是 50.80 kilograms50.80公斤 (112 pounds112磅 — boxing still likes that pound figure拳擊界還是很愛用磅這個數字)。

The fly is the insect. The name is a kind of joke: this boxer is meant to be tiny and quick, like a fly. It has nothing to do with flying through the air.

The flyfly這個字 is the insect指的是蒼蠅這種昆蟲。 The name這個名字 is a kind of joke算是一種玩笑: this boxer is meant to be tiny and quick, like a fly意思是這個拳手要像蒼蠅一樣又小又快。 It它 has nothing to do with flying through the air跟在空中飛一點關係都沒有。

Though actually, the exact kilo line moves a little with men's professional boxing, women's boxing, and the Olympics. Professional boxing also slices even thinner classes into the gaps (light-flyweight, super-flyweight). MMA uses the word flyweight too, but that class is heavier, around 57 kilos.

Though actually不過實際上, the exact kilo line moves a little確切的公斤界線會有點變動 with men's professional boxing, women's boxing, and the Olympics依男子職業拳擊、女子拳擊，和奧運而不同。 Professional boxing職業拳擊 also slices even thinner classes into the gaps還會在中間切出更細的量級 (light-flyweight, super-flyweight像是light-flyweight、super-flyweight)。 MMAMMA（綜合格鬥） uses the word flyweight too也用flyweight這個字, but that class is heavier不過那個量級比較重, around 57 kilos大約57公斤。

If you keep one picture, keep this one: boxing, very light, not the very lightest, not yet bantamweight.

If you keep one picture如果你只要記住一個畫面, keep this one就記住這個: boxing拳擊, very light非常輕, not the very lightest但不是最輕的, not yet bantamweight還沒到bantamweight（雛量級）。

People sometimes stretch it outside sport. Calling an idea or a person a flyweight means “not a serious heavyweight” — informal, and a bit sharp, so be careful with it.

People sometimes stretch it outside sport人們有時候會把這個字用到運動以外的地方。 Calling an idea or a person a flyweight把一個想法或一個人稱作flyweight means意思是 "not a serious heavyweight"「不是個真正夠份量的heavyweight（重量級）」 — informal這是非正式的用法, and a bit sharp而且有點犀利, so be careful with it所以用的時候要小心一點。