单词	用船闸将河隔成段
释义	用船闸将河隔成段lock off
随便看	it is fit it is fit to praise him it is for this cause it is for you to decide it is going to rain it is good of you it is gratifying to learn it is hard to retain an estate it is hard to say, meaning it cannot be said with propriety it is harmless to man it is he it is hers it is he who did it (it is) high time it is high time it is his custom it is his custom to go there it is i it is important or material it is impossible to comply with your wishes it is impossible to say it is included in one word itis {=industry & technology information services} it is in print it is just 12 o'clock