A tree-lined road, street, or path has trees standing along both sides of it, in a row. That is the whole meaning — but the word does more work than that.

a tree-lined road, street, or path 一條 tree-lined 的道路、街道，或小路 has trees standing along both sides of it, in a row 兩旁排成一列種著樹。that is the whole meaning 這就是全部的字面意思 — but the word does more work than that 但這個字做的事情不只這樣

It almost never appears as a neutral fact. It appears when someone wants you to feel that a place is pleasant: quiet, shaded, green, a bit expensive. Estate agents love it. Novels love it. 'A tree-lined avenue' tells you as much about the money and the mood of a neighbourhood as about the trees.

it almost never appears as a neutral fact 它幾乎不會只是中性地陳述事實。when someone wants you to feel that a place is pleasant 當有人想讓你覺得一個地方很宜人的時候 it appears 它就會出現：quiet, shaded, green, a bit expensive 安靜、有樹蔭、綠意，還帶點高級感。estate agents love it 房仲很愛用這個字。novels love it 小說也很愛用。'a tree-lined avenue' 'a tree-lined avenue'（林蔭大道）這個說法 tells you as much about the money and the mood of a neighbourhood as about the trees 告訴你的不只是樹，還有這個社區的價位和氛圍

Grammatically it sits in front of a noun and stays there: a tree-lined street, tree-lined boulevards. You would not normally say 'the street is tree-lined' — English speakers say 'the street is lined with trees' instead, which is the same picture as an ordinary sentence. Keep the hyphen; it is one of those two-word adjectives that needs it.

grammatically it sits in front of a noun and stays there 文法上它固定放在名詞前面：a tree-lined street, tree-lined boulevards a tree-lined street、tree-lined boulevards 都是這樣。'the street is tree-lined' 'the street is tree-lined' 這種說法 you would not normally say 一般不會這樣說 — 'the street is lined with trees' instead 英文母語者會改說 'the street is lined with trees'，which is the same picture as an ordinary sentence 這是同樣的畫面，只是用一般句子的形式。the hyphen 連字號 keep 要保留；it is one of those two-word adjectives that needs it 這是那種需要連字號的雙字組合形容詞

And notice the trees must form a line. Three trees scattered in a park is not tree-lined. The word needs the row, the repeating shape you see when you look down the road.

the trees must form a line 樹一定要排成一列 notice 要注意這點。three trees scattered in a park 公園裡散落的三棵樹 is not tree-lined 不算 tree-lined。the row, the repeating shape you see when you look down the road 那排、那種你順著路看過去會看到的重複形狀 the word needs 這個字需要的就是這個