单词：Gnathostoma
all that have distinct jaws, in contrast with the leptocardians and
marsipobranchs (Cyclostoma), which lack them.
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格列佛游记.Gulliver's.Travels
aspirin 阿斯匹林 dentist 牙医 earache 耳朵疼 flu 流行感冒 have a headache 头痛 have a stomachahe 胃痛 have a temperature 发烧 have a toothache 牙痛 have an earache 耳朵痛 have flu 得了流行性感冒 have measles 得了麻疹
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