快速答案
salvar 保存数字内容或从危险中救出；guardar 把东西收好留待以后。
可靠的方法是先判断这个词在句子里的功能，再翻译。
每个词的作用
salvar
to save or rescue
Use salvar for preserving digital changes or protecting someone or something from danger.
guardar
to keep or put away
Use guardar for storing an object or information for later and keeping it safe.
如何选择
- salvar: Choose salvar if the sentence points to preserving digital changes or protecting someone or something from danger.
- guardar: Choose guardar if the sentence points to storing an object or information for later and keeping it safe.
例句
Salve o arquivo antes de fechar o programa.
Save the file before closing the program.
Guarde os documentos nesta gaveta.
Keep the documents in this drawer.
常见误区
For a physical object placed in a cabinet, guardar is natural. Salvar would suggest rescuing it from a threat.
放到语境中练习
从你的真实生活中选一个句子，写两遍：一次用 salvar，一次用 guardar。如果两个版本都可以，说明意思怎样变化。