Cheerio! I'll see you later.
再见！回头见。
牛津词典
Cheerio. Say good - bye to the rest of the family for me, will you?
再见. 请代我向你家人道别.
期刊摘选
That suits me fine! Cheerio!
这(时间)对我很合适! 再见了!
期刊摘选
Cheerio, I'll see you tomorrow.
再会, 明天见.
期刊摘选
Cheerio! I'll see you later.
再见！回头见。
《牛津高阶英汉双解词典》
"they said their good-byes"