他们在旅途中遭遇了一系列小事故。

They suffered a series of ___mishaps during the trip.

那场事故只是一个悲剧性的小不幸。

The accident was just a tragic ___mishap.

就个人而言，我一直受到父母的礼貌关怀，这帮助我克服了所有可能发生的小不幸。

Personally speaking, I have always received courteous attention from my parents and this has helped me overcome all ___mishaps that may occur.