他不定期地来探访我们.He visits us at irregular intervals.他在不定期航空公司受过训练.He got his training with the non - skeds.村民委员会将村务定期或不定期地向村民公开.Villagers'committees regularly or periodically make public the affairs of the village to the...
Mars has an insubstantial atmosphere, consisting almost entirely of carbon dioxide.火星的大气层极其稀薄，几乎全部由二氧化碳构成。David Fincher paints from a palette consisting almost exclusively of grey and mud brown.戴维·芬彻几乎只用灰色和土褐色作画。A couple...