1. Exploring really deep caves is not a task for the Sunday afternoon rambler.
    勘控真正深邃的洞穴，决非星期天下午散步人的任务。

2. Exploring really deep caves is not a task for the Sunday afternoon rambler.
    探测非常深的洞穴不是那些在星期日下午漫步的人所能胜任的。