Condition or Consequence

以防, 万一

I'll bring an umbrella with me in case it rains during our walk.

我会带把伞以防我们散步时下雨。

万一, 如果

In the event that the power goes out, we have backup generators to keep the hospital running smoothly.

如果停电，我们有备用发电机来保持医院顺利运行。

在这种情况下, 鉴于情况

Given the current economic downturn, the company had to make some difficult decisions under the circumstances.

鉴于当前的经济衰退，公司不得不在这种情况下做出一些艰难的决定。

结果, 因此

He worked hard on his studies, and as a result, he achieved top grades in the class.

他努力学习，结果在班上取得了最高成绩。

毕竟, 终究

He felt guilty about taking a day off work, but after all, he had been working overtime for weeks.

他对请一天假感到内疚，但毕竟，他已经加班了好几周。