She must know the play backwards by now.
她现在对这个剧本肯定是倒背如流。
Anybody who compiles a dictionary has to know his alphabet backwards.
无论谁编字典都得把字母表记得熟透。
You've read that book so many times you must know it backwards by now!
那本书你读了很多遍，现在一定能倒背如流了。
You've read that book so many times you must know it backwards by now!
那本书你读了很多遍，现在一定能倒背如流了。
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