Last week he ruined the whole job while trying to put right a small mistake, so this time he leftwellalone.
上星期他想纠正一个小错误，却把整个工作弄糟了，所以这次就不画蛇添足了。
2
He's really not feeling well and I left him home alone.
他病得很厉害，我把他一个人留在家里。
3
As you know very well that, vital information is never leftalone and it is protected by something every time, it takes time to carve out the precious valuables from the other system.