元となった辞書の項目
上下
verb
to travel roundtrip on a river, going both upstream and downstream / to rise and fall, to ascend and descend / to exchange words, to discuss, to question and answer
意味（1）
to travel roundtrip on a river, going both upstream and downstream
意味（2）
to rise and fall, to ascend and descend
意味（3）
to exchange words, to discuss, to question and answer
