1.water is a substance essential to our life.2.water that is essential to our life is a subtance.两个句子都没有错吧?第一句子有点不好理解啊,

英语翻译trial fibrillation (AF) is the most common sus- tained cardiac rhythm disorder,which is associ- ated with a substantial risk of mortality and morbidity from stroke and thromboembolism (TE).A substan-tial evidence base is in favor of antic 英语翻译There is a marked trade-off among parameterswhen only the descending track is used,which is substan-tially reduced when inverting data from both ascendingand descending tracks.descend track降轨ascend track升轨希望专业人士回答, 拼词成句 elephant,water,baby,a,is,drinking(.) Which letter is a full of water ? What letter is a body of water? there is a water t____in our school a salt well is much like water Australia is a nation of water babies, a quantity of water pipes is/ are? There is water in a cloud是什么意思 What letter is a lot of water?意思What letter is a lot of water? when it is( ).it is a water drop again. There is a lot of water There is some water两句都对吗 1.Do you want a glass of water?换一种说话意思不变 Would you need a glass of water?2.Fish is Ging water may be a solid or liquid or a gas.ice is f--- water. 首字母填空 The water in the a( ) is a gas ,and we call it water vapour. there is a water bottle on the table对a water bottle 提问 Don’t（ ）water!Water is our bestDon’t（ ）water!Water is our best friend.A.waste B.eat C.use