Knee-length means long enough, or tall enough, to reach the knees. We say it about clothes, and sometimes about boots or socks: a knee-length skirt, knee-length shorts, a knee-length coat. It tells you where the thing stops on the body — at the knee, not at the ankle and not at the hip.

Knee-length Knee-length means長度足以 long enough, or tall enough, to reach the knees長到或高到及膝蓋。We say it about clothes我們會用在衣服上，and sometimes about boots or socks有時也用在靴子或襪子上：a knee-length skirt及膝裙、knee-length shorts及膝短褲、a knee-length coat及膝大衣。It它 tells you where the thing stops on the body告訴你這東西在身上到哪裡結束——at the knee在膝蓋，not at the ankle and not at the hip不是腳踝，也不是臀部。

Though actually, “reach the knees” is a little loose: a knee-length skirt usually sits at or just below the knee, and fashion people argue about the exact line.

Though actually不過其實，"reach the knees" is a little loose「及膝」這個說法有點鬆散：a knee-length skirt usually sits at or just below the knee及膝裙通常落在膝蓋或膝蓋以下一點，and而 fashion people argue about the exact line時尚圈的人會爭論精確的位置。

We do not say “a knee-length child”; we save it for things that hang down. For grass, knee-high is more common than knee-length.

We我們 do not say "a knee-length child"不會說「a knee-length child」；we save it for things that hang down這個字是留給會垂下來的東西用的。For grass講到草 knee-high is more common than knee-lengthknee-high比knee-length更常用。

It is a plain, useful describing word.

It它 is a plain, useful describing word是個平實好用的形容詞。