Tourism is the country's biggest foreign currency earner.

旅游业是这个国家赚取外汇最多的行业。

《牛津词典》

Tourism is the country's top earner of foreign currency.

旅游业是该国外汇收入最高的行业。

《柯林斯英汉双解大词典》

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

For most families, the husband was the top earner.

VOA: special.2010.02.19

The villages produced handicrafts before the quake, but the IOM helped them develop their skills into a revenue earner.

VOA: standard.2010.04.14

The lower earner cannot claim any benefits based on the higher earner's benefit.

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Joey Hudy has entrepreneurial-minded parents that understand the value of work and how earning something gives the earner a deep sense of accomplishment and achievement.

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And it works well for dual earner couples who can live off one income (the other earner sets up the SIMPLE).

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