牢固

láo gù de dà bà zǔ dǎng zhù le hóng shuǐ

牢固的大坝阻挡住了洪水。

The dam was so solidly built that it withstood the flood.

dì jī fēi cháng láo gù

地基非常牢固。

The foundations are very firm.

kòu zi dìng de fēi cháng láo gù

扣子钉得非常牢固。

The button has been fastened firmly.

xìn niàn láo gù

信念牢固

solid belief

jī chǔ láo gù

基础牢固

solid foundation

gāi xiào xiàn zài gēn jī hěn láo gù

该校现在根基很牢固。

The school is now on a firm basis.

zhè zuò jiù qiáo bù tài láo gù bù néng chéng shòu kǎ chē

这座旧桥不太牢固，不能承受卡车。

This old bridge is not strong enough to support trucks.