A boo-boo, in this sense, is a silly mistake — usually a small one, the kind you laugh about after a second, not a disaster. You made a boo-boo if you sent the email to the wrong person, or wrote 15 when you meant 50.

A boo-boo在這個意思上boo-boo, in this sense, is a silly mistake是一個蠢蠢的小失誤 — usually a small one, the kind you laugh about after a second, not a disaster通常很小，是那種你愣一下就會笑出來的，不是什麼大災難. You made a boo-boo你就是犯了一個 boo-boo if you sent the email to the wrong person如果你把郵件寄錯人了, or wrote 15 when you meant 50或是想寫 50 卻寫成 15

It is informal, a little babyish, and often kind: a parent, a nurse, or a friendly boss might use it so the mistake does not feel huge. Grown-ups also use it with a raised eyebrow, which can sound talking-down if the other person wanted to be taken seriously.

It它 is informal, a little babyish, and often kind很口語、有點孩子氣，而且通常帶著善意: a parent, a nurse, or a friendly boss might use it爸媽、護理師，或和善的老闆可能會這樣說 so the mistake does not feel huge好讓這個失誤感覺不那麼嚴重. Grown-ups也 also use it with a raised eyebrow大人也會挑著眉毛這樣說, which can sound talking-down if the other person wanted to be taken seriously如果對方希望被認真看待，這聽起來可能像在講小孩

You will hear 'make a boo-boo' more than 'commit an error'. Though actually, the same spelling is widely used for a child's little hurt — a scraped knee — and that is a different meaning. Here we are only on the 'oops' sense.

You will hear你會聽到「make a boo-boo」「make a boo-boo」 more than「commit an error」比「commit an error」更常見. Though actually不過事實上, the same spelling is widely used for a child's little hurt同樣的拼法也廣泛用來指小孩的小傷口 — a scraped knee像擦破的膝蓋 — and that is a different meaning那是不同的意思. Here在這裡 we are only on the 'oops' sense我們只講「烏龍」這個意思

People do not use it in careful essays.

People do not use it大家不會用這個字 in careful essays寫在正式的文章裡