by far？最佳的

"By far" 是一个英语短语，用来强调某事物是远远超过其他事物的。如果要表达“最佳的”这个意思，可以说：

"By far the best"

"The best by far"

这两个表达方式都能有效地强调某事物在同类中的优越性。例如：

"This is by far the best product I've ever used."

"She is the best singer by far in the competition."