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They were not impaired at all.他们一点也没受影响
at all完全； 根本
Whatever is worth doing at all is worth doing well.
任何值得做的事就值得做好。
I'm not at all sure, actually.
实际上我根本不能肯定。
Even though adults at that dose would've been quite impaired但这么大的量 对成年来说也会有很大伤害
even though即使；尽管
Even though he tried, he still lagged behind other runners.
尽管他努力了，仍落在其他赛跑者之后。
We mustn't let up, even though we're winning.
我们即使快赢了也决不可松劲。
