NET
10 The days of our lives add up to seventy years, or eighty, if one is especially strong. But even one’s best years are marred by trouble and oppression. Yes, they pass quickly and we fly away.
Darby
10 The days of our years are threescore years and ten; and if, by reason of strength, they be fourscore years, yet their pride is labour and vanity, for it is soon cut off, and we fly away.
KJV
10 The days of our years [are] threescore years and ten; and if by reason of strength [they be] fourscore years, yet [is] their strength labour and sorrow; for it is soon cut off, and we fly away.