yellow在英语本上怎么写

1、Many insects are banded black and yellow.
很多昆虫有黑色和黄色的条纹。
2、The male's yellow beak differentiates it from the female.
雄鸟黄色的喙是与雌鸟相区别的主要特征。
3、A series of yellow arrows pointed the way to reception.
连续的黄色箭头标出往接待站的路。