even while的中文意思是什么?

有完整的句子吗?
这样看来,就是 甚至当.的时候～
例如：
He didn't sleep for 2 days,even while he was waiting for the bus to come.
他两天没有睡觉了,甚至在等汽车的时候也没睡.

甚至当
But Stormy was a plodding horse and even while I practiced,I knew it was a lost cause.
但是斯托米起动慢，练的时候我就知道成功的希望渺茫。