He made such awful howlers that even the teacher laughed .
他犯了如此愚蠢的大错，甚至连教师也笑了。
Here 's hoping I 've used up all my howlers for this season .
希望这个赛季我所有的噩运都在这里耗尽了。
Regardless of whether iraq was ever winnable , it is hard to imagine any future american administrations making such schoolboy howlers when it comes to regime change .
不管能否打赢伊拉克战争，很难想象，将来美国政府考虑换人的时候会考虑这些烈性愤青式的人物。
Most mantled howlers of both sexes are evicted from the group they were born in upon reaching sexual maturity , and so most adult group members are unrelated .
