As is often pointed out, knowledge is a two-edged weapon whi
英语翻译As is so often pointed out,knowledge is a two-edged weap
As has already been pointed out,grammar is not a set of dead
This knowledge is often (14) great help to the police.14 whi
英语翻译It is often pointed out that,however ingenious they may
英语翻译As has been pointed out before,air pollution is becoming
英语翻译As Eugene Ferguson has pointed out,A technologist thinks
_______ has already been pointed out,grammar is not a set of
he has pointed out that the tree is a useful source of incom
___ has already been pointed out,grammar is not a set of dea
(1)_____has already been pointed out,fast reading is importa
as is often the case,we have worked out the
knowledge is