“Become”最常见意思是“变成;成为”(表示状态或身份的变化),也可表示“变得适合/相称”(较正式用法,如 It becomes you)。
/bɪˈkʌm/
I want to become a doctor.
我想成为一名医生。
Over time, the small town became a busy city as more people moved there for work.
随着时间推移,越来越多人为了工作搬来,这座小镇逐渐变成了一座繁忙的城市。
“Become”来自古英语 becuman(到达、来到、发生),由前缀 *be-*(加强语气/使成为)与表示“来/到达”的词根相关形式演变而来。词义从“来到/发生”逐渐发展为“变成;成为”。