He is allergic to cats. He sneezes whenever there is catfur.
他对猫敏感，每有猫毛就打喷嚏。
2
It has been magnified 115 times, but it contains long hairs such as catfur, twisted synthetic and woollen fibres, a pollen grain, plant and insects.
它被放大了115倍，其中包括猫毛、扭曲的合成和羊毛纤维、花粉粒、植物和昆虫之类的长毛。
3
Household dust which includes long hairs such as catfur, twisted synthetic and woollen fibres, serrated insect scales, a pollen grain, plant and insect remains.