Put up/Pick up/catch up/look

Put up/Pick up/catch up/look 38.The English-Chinese dictionary helps me a lot.I often _____ new words in it.A.put up B.pick up C.catch up D.look up pick up pick off take up take off put on put off pick up pick up pick up give it up ；pick it up；put it up；put it down；分别是什么意思? set off put off come up with catch up with set off put off come up with catch up with take up, make up ,put up和pick up 的意思 pick up 、make up 、keep up 、put up四个单词的意思?以及它们的用法, A.take up B.put up C.pick up D.look up catch up catch up catch up catch up catch up catch up GIVE UP.TAKE UP.PICK UP.GET UP.PUT UP.的区别 是什么?有其他意思吗？