take up意思是：拿起；吸收(水分)；溶解(固体)；开始从事；占据(时间,地方)。
造句：
拿起，捡起，举起，拔起；拿走：
1.She took up the receiver and began to dial the number.
她拿起听筒开始拨电话号码。
2.They took up arms and fought for their faith and liberty.
他们拿起武器为信仰和自由而斗争。
吸收(水分)；溶解(固体)：
1.She used a blotting paper to take up the ink.
她用吸墨纸吸墨。
2.How much water is needed to take up the sugar?
这糖需要多少水才能溶解?
占用，占(地方)：
All available accommodation were taken up.
房间都住满了。
占去(地方、时间、注意力等)；费(时间)；占据(注意力)：
1.I'm sorry I've already taken up so much of your valuable time.
对不起，我占了你这么多宝贵时间。
2.The piano takes up too much space.
这架钢琴占地方太多。
3.The whole of my time is taken up with trifles.
我的所有时间都被琐事占去了。