If someone is boisterous, they are full of energy and they make a lot of noise — laughing, shouting, running about. People use it most about children, and often with a half-smile rather than real anger: the children were boisterous at the party.

If someone is boisterous如果一個人boisterous, they are full of energy代表他精力充沛 and they make a lot of noise而且很吵 — laughing, shouting, running about又笑又叫、到處跑。People人們 use it most about children最常用這個字形容小孩, and而且 often with a half-smile rather than real anger常常是帶著微笑說的、不是真的生氣: the children were boisterous at the party the children were boisterous at the party（這些小孩在派對上很吵鬧）。

It is not as harsh as rude or naughty. Adults can be boisterous too, especially in a loud, cheerful group, though about a grown person it can hint that they are a bit much. It describes behaviour in a moment, not a person’s whole character.

It它 is not as harsh as沒有...那麼刺耳 rude or naughty rude或naughty。Adults大人 can be boisterous too也可以boisterous, especially in a loud, cheerful group尤其是在吵鬧又開心的一群人裡, though about a grown person不過用在成年人身上 it can hint會有一點暗示 that they are a bit much他有點太過頭了。It它 describes behaviour in a moment形容的是當下的行為, not a person's whole character不是一個人整體的性格。

The older history is messy. It comes from Middle English boistres, an altered form of boistous (“crude, unrefined”), of uncertain origin, likely from Anglo-Norman boystous / bustous (“rough, in a crude state,” also “lame”) and Old French boitous (“limping; having a rough, uneven surface”). The path is not certain, and the meaning has shifted toward noisy energy rather than “rough” or “lame.”

The older history更早的來歷 is messy有點亂。It它 comes from來自 Middle English boistres中古英文boistres, an altered form of是...的變體 boistous boistous ("crude, unrefined")（「粗野、未經雕琢」）, of uncertain origin來源不確定, likely from可能來自 Anglo-Norman boystous / bustous盎格魯-諾曼語boystous／bustous ("rough, in a crude state," also "lame")（「粗糙、處於粗野的狀態」，也有「跛腳」的意思） and和 Old French boitous古法文boitous ("limping; having a rough, uneven surface")（「跛行的；表面粗糙不平的」）。The path確切的演變路徑 is not certain並不確定, and而 the meaning意思 has shifted toward noisy energy也已經從...轉向了吵鬧的活力 rather than "rough" or "lame."而不是「粗糙」或「跛腳」。