To leer is to look at someone in a way that makes them feel like an object — a long, open, sexual stare, usually with a small unpleasant smile. Every part of that matters.

To leer isleer是 to look at someone in a way that makes them feel like an object用一種讓對方覺得自己像個物品的方式看人 — a long, open, sexual stare很久、很明顯、帶有性意味的盯視, usually with a small unpleasant smile通常還帶著一點令人不舒服的微笑。Every part of that matters這裡面的每個細節都很重要。

It is not a quick glance; it lasts. It is not hidden; the person wants to be seen looking, and that is part of what makes it horrible.

It is not a quick glance它不是匆匆一瞥; it lasts它會持續一段時間。It is not hidden它也不是偷偷摸摸的; the person wants to be seen looking那個人就是想讓你發現他在看, and that is part of what makes it horrible這也是讓它令人反感的原因之一。

And the face is doing something too — the mouth is usually curled, the head slightly tilted, so the look says 'I am enjoying this and I do not care that you noticed.' The pattern is leer at someone: 'He leered at her across the bar.' The word carries the judgement of whoever is telling you; a person leering never thinks of it as leering. It is the standard verb for describing harassment in novels, journalism and film reviews, and it is stronger and more specific than stare — a stranger might stare at you because you look lost, but nobody leers innocently.

And the face is doing something too臉部表情也有動作 — the mouth is usually curled嘴角通常上揚, the head slightly tilted頭微微歪一邊, so the look says所以那個眼神像是在說: 'I am enjoying this and I do not care that you noticed.'「我很享受這樣看你，而且我不在乎你發現了。」 The pattern is leer at someone固定用法是leer at someone（盯著某人看）: 'He leered at her across the bar.''He leered at her across the bar.' The word carries the judgement of whoever is telling you這個詞帶著說話者的評價; a person leering never thinks of it as leering正在leer的人自己從來不會覺得那是leer。It is the standard verb for describing harassment in novels, journalism and film reviews它是小說、新聞報導、影評裡描述性騷擾的標準動詞, and it than比 stare比stare（盯著看） is stronger and more specific更強烈、更具體 — a stranger might stare at you because you look lost陌生人可能因為你看起來迷路而stare你, but nobody leers innocently但沒有人會無辜地leer。

The same word is a noun for the look itself: 'he gave her a leer', 'a drunken leer spread across his face'. As a noun it does not have to be sexual, though it usually is; a leer can also be a nasty gloating smile, the look of someone enjoying your bad luck.

The same word is a noun for the look itself同一個字也可以當名詞，指那個眼神本身: 'he gave her a leer''he gave her a leer', 'a drunken leer spread across his face''a drunken leer spread across his face'。As a noun it does not have to be sexual當名詞用時不一定跟性有關, though it usually is雖然通常是; a leer can also be a nasty gloating smileleer也可以是一種幸災樂禍的討厭笑容, the look of someone enjoying your bad luck就是有人在看你倒楣時露出的那種表情。

There is also an older sense, now rare, where to leer just meant to look sideways or out of the corner of the eye — the word seems to come from an old noun leer meaning 'cheek' or 'face in profile', which is the sideways look you turn towards someone. The sexual meaning has now almost completely taken it over.

There is also an older sense, now rare還有一個比較舊、現在很少見的意思, where to leer just meant to look sideways or out of the corner of the eye就是leer單純指斜眼看或用眼角餘光看 — the word seems to come from an old noun leer meaning 'cheek' or 'face in profile'這個字似乎是從一個古老的名詞leer來的，意思是「臉頰」或「側臉」, which is the sideways look you turn towards someone也就是你轉頭斜看某人的那種眼神。The sexual meaning has now almost completely taken it over現在性意味的用法幾乎已經完全取代了它。