You wouldn't have heard of it.你应该没听说过
hear of:听说
I rejoice to hear of your promotion.
听说你高升我非常高兴。
相关短语:not hear of不答应(拒绝考虑)
I will not hear of you making a trip to that place.
我不允许你去那个地方旅行。
She said you wanted to turn something in?她说你有东西要上交
turn in:上缴
Only a few guns have been turned in so far.
时至今日只上缴了少数几支枪。
We'll return it to you as soon as we can.我们会尽快把它还给你的
as soon as:一 ... 就
I'll write you as soon as I get there.
我一到那儿,就给你写信。
Let us start as soon as he comes.
等他一来我们就动身。
词义辨析:once,as soon as两者均为从属连词,引导时间状语从句,都表示主句的动作紧跟在从句的动作之后发生。
once除表时间外,还表示条件,一般译作“一旦......就......”。
as soon as强调的只是时间,译作“刚......就......”或“一......就......”。