little by little
词形变化：
形容词比较级: littler/less/lesser | 形容词最高级: littlest/least | 名词: littleness |
同义词：
small | slight | trivial | bit | unimportant | tiny | not very | not much | short | insufficiently | inadequately | puny | barely | minimum | modicum | miniature | teeny | wee | degree | ounce | scrap | mini | minute | fine | scanty | skimpy | baby | petite | fussy | insignificant | mere | picayune | petty | footling | fiddling | niggling | piddling | lilliputian | minuscule | piffling | several | few |
反义词：