?不久以后

shortly afterwards 不久以后 for the first time 第一次…(只做状语,不引导从句) .

?没过多久

... shortly soon在即 shortly afterwards不久以后;没过多久 shortly before前不久 ...

?过后不久

... couldn’t be better 不可能更好 (最好) shortly afterwards 过后不久 fall in love with sb 爱上某人 ...

?不久之后

... 等你过来陪我睡觉 ? You come here with me, such as sleep 不久之后 ? Shortly afterwards, 一个三岁的男孩 ? A three-year old boy ...