有人认为黑猫的出现是吉祥之兆，有人则认为黑猫是不祥之物。

Some people believe that the appearance of a black cat is a propitious sign, others believe that black cats are unlucky.

youdao

蝙蝠从中世纪起，西方文化就把蝙蝠与巫婆联系在一起，认为这种飞行的哺乳动物是不祥之物，至少让人们见了感到扫兴。

Bat in Western cultures, where bats have been associated with witches since the Middle Ages, these flying mammals are generally considered bad luck, or at least no fun to have around.

youdao