fill up
1．（cause to） become completely full（使）装满；客满
The lake is filling up after the heavy rain．大雨之后湖水涨满。
Please fill up the tank．请把油箱装满。
She filled his glass up a second time．她第2次给他斟满了杯。
All the theatres were quickly filling up．所有的剧院很快客满了。
The vacancy in the office must be filled up．办公室的空缺必须补充。
2．complete sth．such as blanks，forms，etc．填写（空格、表格等）
I want you to fill up this form according to my instructions．我想让你按我的指示填写这张表格。