Write out the word according to their meanings in the right column. The first letters are already given . 根据提示写出单词,单词的首字母已经给出。 1. a be grateful for 2. s be difficult to detect or grasp by the mind 3. o easily perceived by the senses or grasped by the mind 4. m having or involving or consisting of more than one part 5. p something having the property of being analogous to something else