To build a tunnel, the problem of ventilation must be first solved.

要建造一条隧道，通风问题得首先解决。

youdao

This is the sort of problem that was first solved by Electronic Data Interchange (EDI) systems that used secured networks to operate.

这种问题首先由使用安全网路进行作业的“电子资料交换(Electronic Data Interchange (EDI))”系统解决。

youdao

Reserves is material base of gas field. How ascertain dynamic reserves of gas field is first solved issue of gas field development.

储量是一个气田的物质基础，如何确定动储量及动储量的大小是气田开发中首先必须解决的问题。

youdao

And the first thing you do is ask is it an instance of some problem that other people have already solved?

而且你以前从没碰过这个问题,你首先要做的一件事就是问问自己,这是不是一个别人已经解决了的问题？

麻省理工公开课 - 计算机科学及编程导论课程节选

Dr Cao's group first solved the problem of using Anderson localisation to create a true laser last year, but the resulting devices were a millimetre across.

ECONOMIST: Microlasers

What problems will Gates be able to declare he's solved first?

FORBES: Magazine Article

Any government can emerge in our country, but first we must have solved our problems of national unity.

CNN: ASIANOW - TIME Asia | Interview: Foreign Minister Win Aung - Page 1