坚直的英语怎么说

"坚直"的英文是 "upright"。这个词来源于拉丁文 "uprigĕre"，意思是"竖立"或"垂直"。
例句：
He always stood upright and never slouched. 他总是站得笔直，从不驼背。
The tree was cut down, but the stump remained upright. 这棵树被砍倒了，但树桩仍然立着。
The building was destroyed in the earthquake, but the steel frame remained upright. 这栋建筑在地震中被摧毁，但钢框仍然竖立着。