不但……而且……: Not only... But also......
遛: to stroll, to walk (an animal)...
优良: fine, good, first-rate...
友情: friendly feelings, friendship...
犹如: similar to, appearing to be...
化验: chemical examination, to do a lab test...
千变万化: countless changes, constant permutation...
池塘: pool, pond...
屯: difficult, stingy...
