I must give the graduation speech tomorrow at school.

So it's for all those reasons that we think this is a completely spontaneous speech.

所以,出于这些理由,我们认为这句‘诗言’完全是自发的感言.

Some of Cooper guys say, Cooper means Cooperation.

库柏人常感言库柏就是合作.

Winners are delivering thoughts about victory.

获奖选手们正在发表获奖感言.

The sun melted the dark clouds.

日出驱散了乌云.

Dark clouds folded the hills.

乌云笼罩着群山.

Black clouds floated by in the sky.

乌云从天空中飘过.

Look at those black clouds; there's going to be a storm.

瞧那些乌云, 眼看要有暴风雨了.

Judging from those black clouds, we're in for a storm.

根据那些黑云来判断，我们一定会碰上一场暴风雨。

The variation of K Ar ages of the biotite in granite reflects the rising and cooling history or the intrusive during the orogenic period.

造山期花岗岩黑云母K-Ar年龄的变化是岩体隆起，冷却史的反映。

To fight heug-un, we need at leadt three of ud.

要战胜黑云，我们至少得有三个人。

Melting Experiment of Biotite Gneiss-H_2O System at 0.1-0.2 GPa Pressures

黑云母片麻岩H2O系统在0.10.2GPa压力下的熔融实验

Thick clouds darkened the sky before the rain fell.

在下雨之前，黑云使天空变得黑暗了。

From northern skies a cloud approaches, aloft upon the winds of change.

乘着易迁之风，一团黑云自北方的天际压来。

Dark clouds bearing down on the city threaten to overwhelm it.

黑云压城城欲摧。

REE distribution in the first phase intrusive rock descends in an order of pyroxenite to biotite pyroxenite to apatite rock.

第一期侵入岩较其它期次侵入岩REE含量高，按辉石岩黑云母辉石岩磷灰石岩的顺序增加。

Optics and micro-shape characters in the process of biotite transforming to chlorite

黑云母向绿泥石转化过程中微观形态及光性特征

He that sends the clouds can as easily clear the skies.

祂能将黑云密布天空，祂也能很容易地使天气清朗。

Look at the heavy clouds! It's going to rain.

看那黑云！天要下雨了。

Look at those dark clouds! it's got to rain today.

你看这黑云，今天准得下雨。

The results show significant differences in oxygen isotope composition between biotite gneiss and granitic gneiss.

结果表明，这两种片麻岩在氧同位素组成上存在显著差别：黑云母片麻岩与共生的榴辉岩δ18O值呈同步变化，全岩δ18O值从－4.7‰变化至＋10.3‰；