By building houses in the steep canyons, Californians are tempting fate in the form of mudslides and fires.加州人把房子盖在陡峭的峡谷中，面对泥石流和火灾，他们是在玩命。There are unconfirmed reports of several small villages buried by mudslides.据未经证实的报道说，几个小村庄被泥石流吞没了。The deluge caused severe mudslides.这场暴雨引发了严重的泥流。