For better survival

生存───existence

I was unaware of his existence until today.───直到今天我才知道有他这么个人。

Since her illness, other people had become shadowy and had no real existence for her.───自从她生病后, 其他人在她眼中变得很模糊,似乎不存在了.

belief in the existence of a benevolent god───对于仁慈的神之存在的笃信

Temperature records have unequivocally confirmed the existence of global warming.───气温记录清楚无疑地证实了全球气候正在变暖。

They seek strong sensations to dull their sense of a meaningless existence.───为了冲淡生活毫无意义的感觉，他们追求强烈的刺激。

New companies come into existence every year.───每年都有新的公司开业.

I was certain I'd found you here if you were still in existence.───我确信如果你还活着的话,我会在这儿找到你.

The finds from these burial grounds point to the existence of a prosperous matriarchal society.───这些墓地中发现的东西说明曾经有过一个昌盛的母系社会.

Trees owe their existence to soil.───树木靠土壤生存.

Nash did not live a cloistered existence nor was he spared the shocks that flesh is heir to.───纳什并非过着与世隔绝的生活,他同样也不能逃脱人生难免的种种打击.