Agency chief Margaret Chan has expressed concern there is not a good process in place to produce enough vaccine against the virus.

VOA: special.2009.08.05

unless the brain is not good enough, as I said, what counts good enough are not enough to keep the personality.

除非大脑不是完好的，不够完好，无法储存,完整的人格。

耶鲁公开课 - 死亡课程节选

The worry gets raised by Cebes who says even if we grant the soul is nearly indestructible, that's not good enough to get us immortality.

赛贝斯提出了他的担心，他说,即使我们同意灵魂几乎不可摧毁，也不足以让我们不朽。

耶鲁公开课 - 死亡课程节选

"It is a movement in the right direction," "It is good, but it is just not good enough yet.

VOA: standard.2009.11.12

So this is only important, good to know,important to know, but not enough.

这是很重要的，知道很好，知道很重要，但不够。

哈佛公开课 - 幸福课课程节选

While the money is good, it's not quite good enough to live on full time.

VOA: standard.2010.08.03

"But for those who were laid off last month and the millions of Americans who have lost their jobs in this recession, a good trend is not good enough.

VOA: standard.2009.12.06