It would be so creamy, you could see the top layer of yellow above the milky white.

牛奶是如此香滑，你能看到牛奶面上那层黄色的牛奶皮。

youdao

The bright yellow arcs that streak the marine cloud layer are ship tracks—clouds that form when water vapor condenses onto the myriad tiny pollution particles in ship exhaust.

划过海洋云层明亮的黄色弧线是船舶的航迹——那是些由水蒸汽与船舶排放出来的无数污染微粒凝结而成的云。

youdao

Then, after around 5 minutes, the thicker dermal layer of skin shrinks and begins to split, allowing the underlying yellow fat to leak out.

大约5分钟后，较厚的真皮部分开始收缩、开裂，于是位于真皮下层的脂肪开始溢出。

youdao

The traffic layer, which lights up in red, yellow and green depending on the amount of traffic, also was particularly helpful on the way back to New York.

WSJ: Review: iPhone Google Maps lags Android version

This upper layer is available in standard camouflage colours, such as yellow (for deserts) and green (for jungles).

ECONOMIST: Monitor: A good kind of gas-guzzling | The

It seems a layer of varnish added later to protect the work is in fact turning the yellow to a greyish-orange colour.

BBC: Van Gogh's Flowers In A Blue Vase damage seen in X-rays