首先 挑個(gè)錯(cuò),you have understand 是沒有的東西,應(yīng)該是 you have understood. (完成式)
或者就用現(xiàn)在式,you understand.
答案選A, Once you have understood this rule, you have no further difficulty.
(你一旦明白了這個(gè)規(guī)則) (就沒有更多問題/困難了.)
其他幾個(gè)選項(xiàng)要用的話,要嘛改句子,要嘛意思就變樣了：
unless=除非...否則
unless you have understood this rule, you have no further difficulty.
除非你明白這個(gè)規(guī)則,否則是不會(huì)有問題的(規(guī)則懂得越多問題就越多?!)
only=只有、唯有
only WHEN you have understood this rule will you (對(duì),這個(gè)順序) have no further difficulty
唯有當(dāng)你了解...的時(shí)候,才不會(huì)有更多的難題(意思對(duì)了,但太復(fù)雜了,有點(diǎn)彆扭)
until=直到...(的時(shí)候)
until you have understood this rule, you will have no further difficulty.
一直到你明白了這條規(guī)則為止 都不會(huì)有更多難題(所以大家最好不要明白... (^_^|||)
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老實(shí)說 在下覺得這整個(gè)句子都有點(diǎn)怪...
一般要不是說 once you have understood.you will have. ( =完成式 後面跟未來式)
你一旦了解"了以後" 就"不會(huì)" 再有問題了
要不就是 once you understand.you have.( =全部現(xiàn)在式)
你一旦了解就沒問題了
再不然就是: once you understand.you will have. ( =前半現(xiàn)在,後半還是一樣用未來式)
第一個(gè)和最後一個(gè)都比較順.
我講了一堆,好像有點(diǎn)混亂.總之希望對(duì)你有些幫助、歡迎更多的問題!(^_^ )