by the time it ends什么意思?
问题描述：
by the time it ends什么意思?
The conference will have lasted a full week by the time it ends.
答
by the time 到...时间为止,要用完成时态
The conference will have lasted a full week by the time it ends.
这句话所用的时态为将来完成时态,
翻译:
当它(会议)结束的时候,会议将已经持续一整周了