你看看词典示例：products imported from many countries, e.g., France, Germany, and Japan （韦氏高阶）；citrus fruits, e.g. oranges and grapefruit (朗文）；popular pets, e.g. cats and dogs （牛津）
朗文对e.g.的使用做了说明：在正式文体如论文或商业信函中要避免使用e.g.，而用for example.
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In formal contexts such as essays or business letters, people usually avoid using the abbreviation e.g., and write for example in full:
They might use local health care facilities, for example clinics and district hospitals.
