1、 He was too yellow to stand up for his rights、他太怯懦，不敢維護自己的權利。
2、 Yellow is my favorite color、黃色是我最喜歡的顏色。
3、 He is too yellow to stand up and fight、他太膽怯而不敢起來(lái)抵抗。
4、
5、 The bullies picked on him because he was yellow、因為他怯懦，所以混混找他麻煩。
6、 It was autumn and the leaves were beginning to yellow、已經(jīng)是秋天了，樹(shù)葉開(kāi)始變黃。