by在这句中的意思we often get discouraged by failure while preparing

by在这句中的意思we often get discouraged by failure while preparing We often go to school by taxi 同义句 We often go there by bike的同义句 as you would be done by ,by在句中的意思和作用? by the time we get to the cinema的意思 We often go to Shanghai by train.【改写为同义句】We often ___ ___ __ weakened by这句意思? We often get i---- by reading newspapers,magazines and all k taken by themselves什么意思 这句话在句首 She is by far thecleverest girl in our class翻译和BY FAR在句中的意思. We often just drop by our friends' we are going to get to Moon Park by underground (句意不变）we are