Meaning of láo:
láo
牢
Adjective
firm; sturdy
Zhèxiē dīngzi dǎ de hěn láo.
这些钉子打得很牢。
These nails are hammered in very firmly.
Zhè bǎ yǐzi hěn láogu.
这把椅子很牢固。
This chair is very sturdy.
Noun
fold (for animals); sacrifice; prison
Nóngchǎng gōngrén bǎ yáng gǎn huí dào chùláo lǐ.
农场工人把羊赶回到畜牢里。
The farm workers herded the sheep back into the fold.
Zhè xiàng gōngzuò hěn xīnkǔ, dàn wǒmen bìxū bǎ tā zuò hǎo, bùguǎn duōme xīnkǔ, jué bùnéng diàoyǐqīngxīn, yīnwèi zhè yīqiè dōu zhídé wǒmen fùchū xīnkǔ de láo.
这项工作很辛苦，但我们必须把它做好，不管多么辛苦，绝不能掉以轻心，因为这一切都值得我们付出辛苦的牢。
This work is arduous, but we must do it well. No matter how hard it is, we cannot take it lightly, because all this is worth our hard sacrifice.
Tā bèi guān zài yī gè jiān gù de láo fáng lǐ.
他被关在一个坚固的牢房里。
He was locked in a strong prison cell.
