| 释义 |
DEFINITIVE EXAMPLES 权威例句〔die out〕It's a custom that is beginning to die out.这是一种正在消失的习俗。剑桥高阶〔mutation〕Environmental pressures encourage genes with certain mutations to persist and others to die out.环境的影响使发生了某些突变的基因存活下来,另一些则消亡了。剑桥高阶Environmental pressures encourage genes with certain mutations to persist and others to die out.环境的影响使突变的基因存留而其它的消亡。剑桥国际 |