Because yellow means it's OK to go forward.

因为黄色表示可以向前走。

youdao

Red means stop, yellow means wait, green means go.

红色的意思是停止，黄色的意思是等待，绿色的意思是通行。

youdao

In this case, red equals 2g, green means 3g, and yellow means 3gs.

在本图中，红色相当于2 G，绿色为3g，黄色为3gs。

youdao

A red light means get into position. Yellow light means ready.

VOA: standard.2009.09.10

And this means that the yellow cells on the right side are mouse hair cells in a chicken inner ear.

也就是说，右边黄色部分,代表的是小鸡内耳中的老鼠细胞。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

Now if all we have to go on is just this semiotic system, it's going to be kind of hard to put up resistance to by the same token we'll say "yellow" means "pause," "green" means "go."

而从语义学角度分析，我们必须不能这么想,这样绿色自然就表示继续，黄色表示暂停“

耶鲁公开课 - 文学理论导论课程节选

In case you don't have your smartphone app handy, the taps are equipped with LED lights to show the water's filter status as well -- blue means clean, yellow means not so much and red means you should probably get a new filter, pronto.

ENGADGET

Feeney fouled Arason as the keeper cleared just before the break and the resulting yellow card means he is banned for the trip to Sweden next month.

BBC: Iceland 2-1 Northern Ireland

The Met Office's yellow warning means "be aware".

BBC: UK snow: Winter weather causes travel disruption