• vi. 變硬，變堅固；變堅強；變冷酷
• vt. 使…變硬；使…堅強；使…冷酷；使…麻木不仁
• n. (Harden)人名；(英、德、羅、瑞典)哈登；(法)阿爾當

來自hard,硬的，-en,使。

harden (n.)

c. 1200, transitive, "make (something) hard," from hard (adj.) + -en (1). Intransitive meaning "to become hard" is late 14c. The earlier verb was simply hard, from Old English heardian. Related: Hardened; hardening.

1. Give the cardboard two or three coats of varnish to harden it.

在紙板上涂兩三層清漆使其變硬。

來自柯林斯例句

2. Their action can only serve to harden the attitude of landowners.

他們的行動只會讓土地擁有者的態度變得更堅定。

來自柯林斯例句

3. The varnish takes a few hours to harden.

清漆需要幾個小時才能干透。

來自《權威詞典》

4. Hot steel is quenched to harden it.

燒熱的鋼放入水中驟冷使之堅硬.

來自《簡明英漢詞典》

5. Test to see if the finish is tacky, and if it is, leave it to harden.

看看最后一道漆干了沒有，要是沒干，就先讓它干透。

來自柯林斯例句