Overarm is how you throw — or bowl, or swim — when the arm goes up high, above the shoulder, and comes over the top. In cricket, an overarm bowl is the usual one; an underarm bowl keeps the arm down by the body, and that feels like a different game. Netball and some playground games use the same contrast.

Overarm上手、過肩 is指的是 how you throw你投擲的方式 — or bowl, or swim或投球、或游泳的方式 — when當 the arm goes up high手臂高高舉起, above the shoulder高過肩膀, and而且 comes over the top從上方揮過去的時候。In cricket在板球運動裡, an overarm bowl上手投球 is the usual one是一般的投法; an underarm bowl下手投球 keeps the arm down by the body讓手臂貼著身體往下, and而 that感覺 feels like a different game像是完全不同的一種玩法。Netball籃網球 and和 some playground games一些操場遊戲 use the same contrast也有同樣的上手／下手區別。

It can describe the throw (an overarm throw) or the way you do it (to throw overarm). It is a sports word, not a fancy one.

It它 can describe可以用來形容 the throw這個動作 (an overarm throw上手擲球) or或 the way you do it你做這動作的方式 (to throw overarm用上手方式投擲)。It它 is a sports word是個運動用語, not而不是 a fancy one一個花俏的詞。

Though actually, if you pick up American sports writing, you will more often see overhand for the same high-arm action; overarm is the word many British and learner dictionaries prefer.

Though actually其實, if如果 you pick up American sports writing你翻開美式的運動報導, you你 will more often see會更常看到 overhand overhand for the same high-arm action用來指同樣這種高舉手臂的動作; overarm overarm is the word是 many British and learner dictionaries prefer許多英式和學習型字典比較偏好用的詞。

It is not a medical word about the arm itself, and it is not two separate words meaning “above the arm”.

It它 is not不是 a medical word關於手臂本身的醫學用語 about the arm itself, and而且 it它 is not也不是 two separate words meaning "above the arm"意思是「在手臂上方」的兩個獨立單字。