Once I think of being sick in abroad, I get sick.

一想到在异乡患病就会令人不寒而栗。

youdao

As a result, they have lost the parachute they once had in times of financial setback—a back-up earner (usually Mom) who could go into the workforce if the primary earner got laid off or fell sick.

因此，它们已经失去了在经济萧条时期曾经持有的“保护伞”——一个后备挣钱者（通常是母亲），她可以在主要挣钱者失业或者病倒的时候出去工作。

youdao

I was sick once - typhoid.

有一回还生了病——伤寒。

youdao

Parson Walker's wife was very sick once, for a long time, and it seemed as if they were not going to save her.

VOA: special.2009.08.29

She once ate so many that she became sick.

VOA: special.2009.03.28

Those who were once sick recognize that the choices made here allow them to stay healthy, work to support their families and contribute to their communities.

FORBES: With Continued U.S. Support, an AIDS-Free Generation Is Possible

For China, once called the sick man of Asia, those are big.

NPR: Thousands Practice Olympic Smiles

They could deny treatment for specific conditions, especially right after a policy is purchased, to dissuade people from signing up only once they get sick.

WSJ: Insurers Make Plans in Case Health Mandate Is Quashed