It remains not certain how long it will be before human beings can live under the sea .

there remains 和 it remains的区别 There it remains. It remains not certain how long it will be before human beings can live under the sea . While we admit that there remains much to be desired ,it does not mean the plan is of little use it remains to sb to do certa vision什么意思? it remains unknown & it's remains to be seen 有什么区别, 英语翻译是it remains的用法呀，用it remains造几个句子， 英语翻译If a jewel falls into the mire ,It remains as precious as before ; And though dust should ascend to heaven ,Its former worthlessness will not be altered . It remains to be seen whether I will succee it remains to be seen which country they will go. It remains to be seen whether he will succeed. it remains to be seen whether you are My love for you remains what it has ever ___ it will do us harm or good remains to be seen.如题 空里面应该写啥?that还是whether?我们老师讲的是that 但我怎么觉得whether也很顺…这两个词怎么用怎么区分?在句子whether it will do us harm or not remains中是 One definition of sustainable tourism states that it is tourism developed andmaintained in an area (community,environment) in such a manner and at sucha scale that it remains viable over an indefinite period and does not degrade oralter the environme 请解析下这个英语句子,含义,句式,语态等The challenge remains,but if humans now fail to provide answers it will not be for lack of trying. 主语从句Which should be chosen remains unknown.可否改为It remains unknown which should be chosen.