In the months leading up to their son's first words,在引导儿子说出第一个词的日子里
lead up to导致; 引导; 作为 ... 的准备;一直通往(某处);为…做准备,为…铺路
A flight of steps led up to the house.
一段台阶向上通到了屋前。
Her kind words led up to a request for money.
她的好话为要钱的事打开了门路。
then over the next several months learned to slowly approximate the proper speech form.在接下来的几个月里经过学习逐渐向正确的表达方式靠拢
learn to学习
I must learn to snatch at every chance to meet him.
我必须学会抓住一切机会同他见面。
A mountaineer must learn to stand the gaff.
一个登山运动员必须学会吃苦。
speech form言语形式