可以。比如：I can tell you by heart:我可以凭印象告诉你
BBC的例句：Even the Chelsea players knew, you could tell by their reaction it was a penalty.
英语里有个词组tell by后面接宾语表通过
可以。比如：I can tell you by heart:我可以凭印象告诉你
BBC的例句：Even the Chelsea players knew, you could tell by their reaction it was a penalty.