没有牢固的地基，建筑都是无法屹立不动的。

No building can stand without <em>firm</em> foundations.

霍普金斯在英国诗歌经典中有着牢固的地位。

Hopkins was <em>firm</em>ly established in the canon of English poetry.

这种胶水粘起来更牢固。

This kind of glue makes a <em>firm</em>er bond.

扣子钉得很牢固。

The button has been fastened <em>firm</em>ly/securely/tight.

不稳固的，不牢固的：

Not <em>firm</em> or fixed; unsteady:

那个椅子腿不牢固了。

Eg. The leg of that chair is not very <em>firm</em>.

砖体底部坐浆密实,连接牢固.

The pulp of the brick slab bottom is dense and <em>firm</em>.

其开口处均应用牢固的罩子封好.

It opening place should be sealed with <em>firm</em> cover.

所有部件必须焊接牢固。

All the part should be welded <em>firm</em>ly.

自有所得，就能牢固掌握。

Once he does so he is able to master it <em>firm</em>ly.