avail的用法

avail的用法 avail的用法 avail oneself怎么用法? avail 有利用的意思吗? 关于反身代词的用法问题.Avail yourself of every opportunity to enrich your knowlege中的yourself 怎么理解.关于反身代词的这种用法一直不太明白.请高手指点下最好给些例子. 关于英语的语法结构I apologized repeatedly,but to little avail,这里but to little avail是做什么句子成分,为什么BUT 后面可以直接接介词? to your avail avail oneself of sth. his powers of persuasion were to no avail.这里为什么要加一个to 好像是多余的? 10 missions are avail.at - - of no effect 和 of no avail 有什么区别?二者都表示无效,完全无用 如何区别?用法上有区别没?这道题选什么All our efforts to persuade her to come and stay with us were of no___.A.result B.avail C.effect D.purpose sb avail oneself of someting句型结构分析?后面的of something 是什么成分?宾补,还是状语,或者其他的?为什么? (英语)请分析一下这句话的成份Attempts to persuade her to stay after she felt insulted were of no avail. avail 通常用语否定句吗? avail 通常用语否定句吗? 选择适合的答案 1.I tried very hard to __ a conversation with that girl but to no avail.选择适合的答案 1.I tried very hard to __ a conversation with that girl but to no avail.(1)run through (2)strike up (3)hold up (4)give away2.Mother is .的用法 单词用法 shallshall的用法