prep. 介词（表示方向）向；（表示对象）对；（表示位置）在…上；（表示时间）在…之时
adv. 副词（放，穿，连接）上；向前，（继续）下去
The cat is sleeping on the warm, cozy blanket.
猫睡在上面温暖舒适的毯子上。
She placed her coffee mug on the kitchen counter.
她把咖啡杯放在厨房柜台上。
We will have a meeting on Friday to discuss the project.
我们将在周五进行会议讨论这个项目。
The picture hangs on the wall in the living room.
这幅画挂在客厅的墙壁上。
He wrote his name on the first page of the book.
他在书的第一页写下了他的名字。
The children played on the playground all afternoon.
孩子们整个下午都在操场上玩耍。
There is a vase on the table filled with fresh flowers.
桌子上有一个装满鲜花的花瓶。
She focused on her studies to achieve her goals.
她专注于在学业上以实现她的目标。
The concert will be held on the main stage downtown.
音乐会将在市中心的主舞台上举行。
He left a note on the refrigerator door for his roommate.
他在冰箱门上给他的室友留了张便条。
on the way 在路上
on purpose 故意
on fire 着火
on duty 值班
on sale 打折
on foot 步行
