Delves
v. 深入探究, 钻研( delve的第三人称单数 )
🗣️ 情景例句
to work out a program
想研拟一项计划
Many a little makes a mickle.
积少便成多。
Why? English is the first language in none of these countries.
为什么？在这些国家中英语都不是第一语言。