1、For there to be successful communication ,there must be attentiveness and involvement in the discussion itself by all present.
句中的by是什么意思?for引导的应该是一个目的状语从句吧,像这种“介词+不定式/名词”应该通常都是作状语,可放句首或句末,而且放在句首时后面的逗号可有可无,不知道理解得对不对。
比如:At that time ,it is the bigest one .=It is the bigest one at that time.
[Grammar]关于by的用法和for引导的目的状语从句(there to be形式)
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