adverb🔗Share一次，一遍。 (frequency) One and only one time."I have only once eaten pizza."我只吃过一次披萨。frequencytimeessentialChat with AIVocabulary GamePractice Reading
adverb🔗Share曾经，以往。 (temporal location) Formerly; during some period in the past."He was once the most handsome man around."他曾经是周围最英俊的男人。timepastessentialChat with AIVocabulary GamePractice Reading
adverb🔗Share一倍 Multiplied by one: indicating that a number is multiplied by one."Once three is three."一倍的三还是三。mathnumberessentialChat with AIVocabulary GamePractice Reading
adverb🔗Share一旦 As soon as."Once you finish your homework, you can go outside to play. "一旦你做完作业，你就可以出去玩了。timelanguageessentialChat with AIVocabulary GamePractice Reading
adverb🔗Share有朝一日，将来。 At a future time."I will visit my grandmother once a month. "我将来每个月会去看望我的奶奶。timefutureessentialChat with AIVocabulary GamePractice Reading
conjunction🔗Share一旦， 一经， 一旦当。 As soon as; when; after."Once he is married, he will be able to claim the inheritance."一旦他结了婚，他就能继承遗产了。grammarlanguageessentialChat with AIVocabulary GamePractice Reading
