Word: 牢固 (láogù) 牢固 dictionary entry láogù firm; secure Full dictionary entry for 牢固 Example sentences using 牢固 2 sentences, showing page 1 of 1. 梯子不牢固，千万别爬上去。 Tīzi bù láogù, qiānwàn bié pá shàngqù. The ladder isn't secure, so don't climb it whatever you do. 这张桌子做得很牢固。 Zhè zhāng zhuōzi zuò de hěn láogù. This table is very sturdily made.