请帮我解释下这个句子里 if 和because的用法和意思A sense of fulfillment is also encouraged if a worker feels the job is worth doing because it contributes to the society or theeconmy as awhole.能帮翻一下,并且主要说明下if

请帮我解释下这个句子里 if 和because的用法和意思A sense of fulfillment is also encouraged if a worker feels the job is worth doing because it contributes to the society or theeconmy as awhole.能帮翻一下,并且主要说明下if 请帮我解释下 matlab题目请帮我解释下这个,没看懂. 请帮我分别解释下芳香烃和芳香烃化合物 初中英语句子改错,麻烦帮我看下并解释下吗：I wonder if Tom has been there. 请大师为我解答一个问题,wonder if 经常连用,请把意思详细的帮我解释下, 请帮我解释下17 19 请帮我解释下什么叫搏奕论 we would like to open purchase discussion.这个句子帮我解释下? 帮我解释一下这个英文句子 是 炉里degree:associate of arts in english ,conferred jointly by Dalian university of foreigh languages and liaoning provincial self -education commission in june of 1996帮我完整解释下句子, =IF(ISERROR(VLOOKUP(B6,L:L,1,0)),,1) 帮我解释下这个公式?通谷易懂最好^ 帮我解释下这个公式不 解释完分就给 And she said if you were to ask me out to dinner.帮我分析下这个句子 谢谢 ：） 有关这个英语句子的成分帮我解释下Margie suddenly remembered that her grandfather once said that (that) centuries ago all stories were printed on paper.括号里的这个that是不是多余的?这句话的成分? 请帮我解释下色氨酸色氨酸的名词解释,作用和用途 C中的位域和位段,请帮我解释下,最好举个例子. 清如水 明如镜的理解请帮我解释下这句话和为官之道 帮我解释下这个镜像电流源,发射极,基极和集电极电流为什么相等?