引言告诉你怎样使用这本书.The introduction tells you how to use the book.该书的引言简短.The book's introduction is brief.本文除引言、结论外,共分为四个部分.This thesis is into four parts altogether besides the foreword the conclusion....
次货充斥市场.The market was glutted with shoddy goods.次货当然有些毛病.Of course, seconds have some defects.我运气好，在一次大减价时买到的一堆次货中得到了这个。I was lucky to get it as part of a job lot at a sale....