By the way 是个语气词,即“附带说一句”之意.如：By the way,has everybody arrived?（附带问一句,大家是否都到了?）
By the way,...
顺便,……
By the way; incidentally.
顺便地；偶然地
They fell out by the way.
他们在路上就争吵起来了.
Return by the way that one came
由原路返回；走回头路
Stopped for a picnic by the way
在途中停在路边野餐