请问：at 2473 metres,it is the highest mountain pass in Europe.句中at的意思以及句子的结构.at 对于'高度',似乎翻译不通,后面为什么不加high那at怎么理解，其结构是什么

请问：at 2473 metres,it is the highest mountain pass in Europe.句中at的意思以及句子的结构.at 对于'高度',似乎翻译不通,后面为什么不加high那at怎么理解，其结构是什么 At 2473 metres, it is the highest mountain pass in europe. 请问at在这是什么意思,是专门表示海拔的吗这句的正确翻译是，海拔2473米，　在欧洲是最高的山口 The Great St.Bernard Pass connects Swizerland to Italy.　at 2473 metres,it is the highest mountain pass in Europe.请问AT在这里是专指海拔的词吗 the highest mountain pass in europe is ___1 of 2473 metres 2 at 2473 metres high 3 high 2473 metres 4 2473 metres high选择哪一个,为什么 这句话是主语补足语还是原因状语?At 2473 metres,it is the highest mountain pass in Europe.At 2473 metres这句,有的书上写的是原因状语,为什么不是主补? it's twenty metres tall? It's 56 metres high.对56 metres high 请问这句话里的up是什么意思啊?you will find it about 100 metres up the road. it is about 320 metres tall.同义句转换it is about 320 metres＿ ＿. 2 The old tower looks nice,it’s about__.A twelve-metres-high Btwelve-metres high C twelve metres high 1）does the house at the foot of the hill helong to ____?no.it's not ___.they don't live in this area.2)the bus stop is ___ from the school.[ten metres far/ten metres away/ten miles far away/ten metres'away]3)before christmas,parents buy lots of pre .The river is very long and it is about ____.A.50 metres tallB.20 metres wideC.30 metres highD.15 metres long At 2473metres,it is the highest mountain pass in Europe.这里的pass是什么词性,怎么感觉 it is the highest mountain in Europe 就能说明它是欧洲最高的山了,为什么要加个pass?另外，The great St.Bernard Pass connects Switzerl it‘s twenty metres tall 对划线部分提问twenty metres tall 这是划线部分 And the water is rising 2 metres every day until it is 13.5metres It's three metres long by two metres wide..这里By是什么意思. It is 467,000 square metres in area的同义句It is 467,000 square metres in area=It has ____ ____ _____467,000 metres. it's about three hundreds metres long on the left