by中文是什么意思
问题描述：
by中文是什么意思
答
by英音：[bai]美音：[baɪ] 介词 prep.1.被,由The homework was assigned by the teacher.这些家庭作业是老师布置的.2.靠,用,通过They crossed the river by ferry.他们乘渡船过了河.3.经由;沿Ellen flew to Chi...