To skydive is to jump from a plane, fall through the air for a while, and then open a parachute so you land safely. As a noun, a skydive is one jump like that.

To skydive is指的是 to jump from a plane從飛機上跳下來, fall through the air for a while在空中落下一段時間, and then open a parachute然後打開降落傘 so you land safely安全著陸。As a noun當名詞用的時候, a skydive isa skydive指的就是 one jump like that這樣的一次跳傘。

People do it as a sport, or once, for a thrill or for charity. You need lessons and a pack on your back; you do not step out of any plane you happen to be on.

People do it as a sport有人把它當成一種運動, or once也有人只做一次, for a thrill為了追求刺激 or for charity或做公益。You need lessons你需要先上課 and a pack on your back背上還要背裝備; you do not step out of any plane you happen to be on不是隨便搭到什麼飛機都能跳下去。

The word is simply sky + dive — a dive through the sky. Though actually the first part is not a swimmer's dive; you are falling, often belly-down, and 'dive' is more the feeling of dropping from very high up.

The word is simply這個字就是 sky + divesky（天空）加dive（跳／潛） — a dive through the sky意思是穿過天空的一跳。Though actually不過其實, the first part is not a swimmer's dive這裡的dive不是游泳選手的那種跳水; you are falling你其實是在下墜, often belly-down通常是肚子朝下, and 'dive' is more the feeling of dropping from very high up'dive'比較是那種從很高的地方往下掉的感覺。

A skydiver is the person; skydiving is the sport. Everyday but a bit exciting in tone.

A skydiver is the personskydiver指的是跳傘的人; skydiving is the sportskydiving則是這項運動本身。Everyday語氣上很日常 but a bit exciting in tone但帶點刺激感。