Feedback is like gold dust when you're learning a language.

学习语言时，反馈就像金粉一样。

For instance, there's a species of marmot in the Himalayas that spreads gold dust while digging.

例如，在喜马拉雅山上，有一种土拨鼠在挖洞时会扬起金粉。

Day after day, children stand in muddy creeks and rivers scouring the water for specks of gold dust.

孩子们日复一日站在泥泞的小及河流中冲刷着着金粉的斑点。

So saying, he slammed a sack of gold dust of the size of a bologna sausage down upon the bar.

说着，他把一袋香肠大小的金沙甩在柜台上。

But this is gold dust to me.

但这对我来说是金粉。

The seed is as expensive as gold dust and as fine.

种子贵如金粉， 又好又细。

A textbook in astrophysics is like gold dust.

物理学教科书就像金粉。

It is usually obtained in the form of small grains called gold dust, but sometimes also in that of lumps called nuggets.

它通常以被称为“金粉”的小谷粒的形式获得，但有时也可以以“金块”的块状形式获取。

I helped her up and we dusted bits of tinsel, gold dust, and loose spangles off her dress.

我扶她起来，我们从她的裙子上掸去金属丝、金粉和散落的亮片。

It was no longer bobbed, and it had changed in the last year from a rich gold dusted with red to an unresplendent light brown.

它不再有波波头， 并且在去年已经从撒上红色的浓郁金色变成了不起眼的浅棕色。

The skies are the brightest of robin's-egg blue and the air has a translucent quality, as though the storms had washed it with a fine gold dust.

空是最明亮的知更鸟蛋蓝，空气有一种半透明的质感，仿佛暴风雨用细金粉将它洗净。

The Europeans took over both of them, and by the middle of the 16th century were hearing rumors of another city, where: " A great Lord… goes about continually covered in gold dust."

欧洲人占领了这两个城市，到了16世纪中叶，他们听到了有关另一个城市的谣言：“（那儿有）一个伟大的领主… … 其周身覆盖着金沙。”

Now we had an account from a Wren who was based here in Dover called Doreen, and her account says that skincare became really hard to get hold of during the war, it was like gold dust.

现在我们有一个来自多佛的 WRNS 的阐述，她叫多琳，她说护肤品在战争期间变得非常难获得，就像金粉一样。

237 Pa's fiddle wailed while Pa was singing: " Oh, Susi-an-na, don't you cry for me, I'm going to Cal-i-for-ni-a, The gold dust for to see." Then Pa began to play again the song about Old Grimes.

237 当爸爸唱歌时，爸爸的小提琴在哭泣：“哦，苏西安娜，你不要为我哭泣，我要去加州，金粉去看。”然后爸爸又开始奏关于老格莱姆斯的歌曲。

Not valuing now the root whence it sprang; having found that it was of a sort which nothing but gold dust could manure, I have but half a liking to the blossom, especially when it looks so artificial as just now.

现在不重视它的根源；发现它是一种只有金粉才能施肥的花，我对这花只有一半的喜欢，尤其是当它看起来像刚才那样人造的时候。