⤵︎ ︎この中の英文から2語で「移行する」という意味を抜き出すという課題なんですけど全くわかりません。心優しい方いたら教えてくれると嬉しいです。 Babies start life with no words. In only a few years, they can speak a language fluently. It is one of the most amazing things human beings can do, and everyone is able to do it. From very early on, babies know that language is important. At six months, they know the sound of their first names. And when people speak, they turn their heads. It’s about this age babies start to make ‘cooing’ sounds. From ‘cooing’ they soon move on to ‘babbling,’ a kind of practice talk— saying words with no meaning. Soon after, they begin to use real words, and by their first birthday a baby can usually say thirty to fifty words. The biggest change comes between eighteen and twenty-four months old. This is when babies start to use words together, things like “All dry,” “Daddy away,” and “More bread”. Their vocabulary increases to a few hundred words in this time, but by age three, children know about 1000 words, and have started using verbs. By four, they are making sentences. They use language more like the language of adults. A four year old says things like, “I like to play dolls,” and can tell a simple story or sing a song. By age five or six, children know between 2,500 and 5,000 words, and for the next few years after this, they learn about 3,000 new words a year—or eight new words a day. Whenever you think learning a language is difficult, just remember: you’ve already done it.