A firefly is a small night insect whose tail lights up. The glow is soft and green-yellow, and it goes on and off. It looks like a tiny moving spark in the grass, but it is not on fire — the light is made inside the body, and the insect uses it to find a partner.

A fireflyfireflyis a small night insect whose tail lights up是一種尾巴會發光的小型夜行昆蟲。The glow is soft and green-yellow那道光是柔和的黃綠色，and it goes on and off而且會一閃一閃的。It looks like a tiny moving spark in the grass它看起來像草叢裡一點會移動的小火星，but it is not on fire但它其實沒有著火——the light is made inside the body那道光是身體裡面產生的，and the insect uses it to find a partner這隻昆蟲用它來找伴侶。

You see fireflies on warm, still evenings, often near water or trees; city lights make them harder to find. American English also calls them lightning bugs, which is the same animal, just another name.

You see fireflies你會看到螢火蟲on warm, still evenings在溫暖、無風的夜晚，often near water or trees常常在水邊或樹附近；city lights make them harder to find城市的燈光會讓牠們更難被看見。American English也稱它們為also calls them lightning bugslightning bugs，which is the same animal是同一種動物，just another name只是另一個名字。

They are beetles, though actually most learners picture a fly. Poems and cartoons treat them as magic; in real life they are shy bugs, and if you catch one in a jar it usually stops glowing and looks like nothing special.

They are beetles牠們其實是甲蟲，though actually不過其實most learners picture a fly大多數學英文的人腦中想到的是蒼蠅。Poems and cartoons treat them as magic詩和卡通把牠們寫得很神奇；in real life但在現實裡they are shy bugs牠們是害羞的小蟲，and if you catch one in a jar而如果你把一隻抓進罐子裡it usually stops glowing它通常就不再發光了and looks like nothing special看起來就沒什麼特別的。