The sea level on both sides of the Grand 为什么LEVEL是单数?

The sea level on both sides of the Grand 为什么LEVEL是单数? above the sea level 还是above sea level?above the sea level有错吗？ sea level要不要加the?同上 below sea level 为什么sea之前不加the on the surface level in the sea还是on the sea 英语翻译Studies investigating sea-level rise forcing on the historical record of shoreline change need to consider the dependence of the trends of shoreline change on the local geomorphology and level of development.求有逻辑的翻译啊！能 翻译句子：the sea level is getting higher and higher. below sea level above sea level The Dead Sea is below the sea level.求翻译并解析 由于有sea level 那level 有某个高度的意思吗 比如 the level of the mountain? 英语翻译stamp duty on the level,level怎么解释, sail in the sea还是 sail on the sea travel in the sea 还是 travel on the sea.. the sea level 用什么介词?the sea level用什么介词?是above还是over?例句：XX is the highest moutain in the world ____ the sea level. Which animal lives not only on the land bot also in the water? 麻烦回答一下几道英文数学题.1、if the product of two positive integers is a prime number what must be the value of the smaller integer?high tide2、a mark M,on a cliff is 1.96m below sea level at high tide .at low tide the sea level is 4