after a few years for many years
for many years
时隙用英文怎么说
时隙内信令用英文怎么说
时隙分配用英文怎么说
时隙环用英文怎么说
时隙配比用英文怎么说
英语词典收录了最新的汉英词典和英汉词典，总共有200多万个词条，词库仍在不断更新中。
