1、His arrival at such an inauspicious time was seen as a bad omen for the event.
他在如此不吉利的时刻到达被视为对这个事件的不祥之兆。

2、The team's performance in the first half was rather inauspicious, but they managed to turn things around in the second half.
球队在上半场的表现相当不吉利，但他们设法在下半场扭转了局势。