young.
adj.年幼的;青年的;有朝气的;年轻人的
n.年轻人;幼小的动物，崽
The night is still young (= it has only just started) .
夜晚刚刚开始。
yellow.
adj.黄色的;黄皮肤的;黄种人的.;胆怯的
vt.& vi.（使某物）变黄或发黄
n.黄色;黄种人;黄色颜料
a bright yellow waterproof jacket
明黄色的防水夹克
you.
pron.你;大家;你们，您们;各位
I thought she told you.
我以为她告诉你了。
yesterday.
n.昨天;往昔;过去
adv.在昨天，在昨日;近来
Where were you yesterday morning?
你昨天上午在哪儿？