as tough as bulls
as transient as a fleeting cloud中文是什么意思
as true as a die中文是什么意思
as true as steel中文是什么意思
as usual中文是什么意思
as vague as mist中文是什么意思
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。
