noun [集合/集体] 七十；七十个；七十岁；七十年代
I thought it was a long way to go for two people in their seventies, but Sylvia loved the idea. 我认为对于两个七十多岁的人来说这是一段很长的路，但是西尔维娅却喜欢这个主意。
adjective [原级] 七十的；七十个的；七十岁的
In the late Seventies, things had to be new, modern, revolutionary. 在20世纪70年代末，一切都得新奇、现代、有创意。
numeral [基数词] 七十
Seventy people were killed. 70人丧生。
- seventy 出现在下面的课文中（提供视频、音频及笔记等可系统性学习）
- Lesson 129&130 Seventy miles an hour
- Lesson 129&130 Seventy miles an hour
- Episode 2 The Blind Date ACT I
- Episode 16 Full of Surprises ACT II
