He kept bouncing up and down like a yo-yo .他像个悠悠球似的蹦蹦跳跳。Don't talk to him, he is a real yo - yo.不要跟他说话, 他真是个摇摆不定的呆瓜.My emotions went up and down scale a yo - yo.当时我的情绪就好象悠悠轮一样忽上忽下....
I undid the bottom two buttons of my yellow and grey shirt.我解开了自己黄灰相间的衬衫上最下面的两个纽扣。The petals can be cooked with rice to colour it yellow.可以把这些花瓣跟米饭一起煮，使米饭变成黄色。Staff will be issued with new grey-and-yellow designer unifor...
a series of questions intended as a checklist计划作为一览表的一系列问题Make a checklist of the tools and materials you will need.把你需要的工具和材料开一张单子。A printed checklist was provided, undue haste forbidden.有一张印刷的供核对用的清单, 严禁仓促行事.A map and ...