fundamental——书面用词，不如basic使用广泛，侧重指作为基础、根本的抽象的事物。essential——语气比fundamental强，强调必不可少，暗含某物如缺少某部分，则失去本质特征的意味。
v.take the first step or steps in carrying out an action同义词: get down begin get start out start set about set out。参考《有道词典》，如有侵权请通知。
在美剧《摩登家庭》S4E2中，Manny在回应妈妈的调侃时，就用到了今天的单词:Gloria: Manny doesn't believe that we know what we're doing. A couple of new hairs under his arm， and now he thinks he knows more than his own mother.
Nobody is quite sure， but poor diet and above all long-time alcoholism have much to do with it .我们共邀请了五十人。
