所以，只需带一张信用卡。可以携带一张积分或返现多的，或者一张不收取国际手续费的（我倾向于这点）。

Instead, stick to one credit card. Either one that gets you the most points or cashback or one that doesn't charge international fees (my preference).

youdao

旅游奖励信用卡的持有者每年必须在旅游上多花8600美元(约合6万元人民币)，获利才能超过使用返现卡。

8,600. That's how much more annually travel rewards credit cardholders would have to spend on travel to earn more than they could with a cash-back card.

youdao