have the virtue of

besides, letters, cards and postcards have the virtue of being tangible--friends can keep them and reread them for years to come.

另外，信件、卡片和明信片都是看得见摸得着的，朋友可以将其保存，以后还可以再读。

He talked easily of Botticelli, and spoke of Fra Angelico with a faint condescension. Fibonacci numbers at least have the virtue of creating a testable proposition; one that they appear to fail.

谈起波提切利，他毫不费劲，说到弗拉安基利科，他甚至带着点屈尊俯就的神气。斐波纳契数的优点在于至少有可测试的主张；一个看起来错了的主张。

premium keys also have the virtue of added reward: two items come from a chest instead of just one!

保险费的钥匙也有增加的奖赏：两项来自胸部，而不只是一个！

as an energy storage equipment, storage battery have the virtue of voltage stabilization, power supply credibility, carrying convenience.

蓄电池作为一种储能设备，具有电压稳定、供电可靠、移动方便等优点。

that may have the virtue of being true.

这可能有被真正的美德。