1、熟悉
...get down 咽下；写下；使沮丧，使抑郁 get down to 认真对待，静下心来get familiar with 熟悉get hold of 获得，取得get home 到家 get in 进入，陷入；牵涉 ...
2、变得熟悉
...get down to 认真对待，静下心来get familiar with 变得熟悉get/catch/seize/take hold of 获得，取得，抓住 ...
3、认识
... familiar〔fmIlI〕adj.认识的；常见的；亲密而接近的 be/get familiar with认识；与…认识起来 or so约莫 ...
4、熟习
...get down to 认真对待，静下心来get familiar with 熟习get hold of 获得，取得 ...