Sometimes, though not often, he had dreams, and they were more painful than the dreams of other boys.
有时,尽管不是经常,他会做梦,而且比其他孩子的梦更痛苦。
It is not often that you get such an opportunity.
你得到这样的机会,可不是常有的事。
Cats are not often noticed by people choosing a new four-legged friend.
人们在选择四条腿的新朋友时,通常不会注意到猫。
But Dr.Brown says fingertips are not often reattached if they are the length of a fingernail or shorter.
VOA: special.2011.02.02
Literacy turns around not often by itself.
文化素养不仅仅由其本身决定。
A little indirect but not so indirect that is difficult to understand. You should use this often.
有一点委婉,但不至于委婉到让人难以理解。应当尽量多使用这种句型。
应用推荐