先決條件, a requirement beforehand; a must; a precondition
requisite
require 要求, needed, necessary, regarded as essential or indispensable
pro-
forward, supporting 向前, 支持
progress
前進, 發展
project
方案, 計劃
prolong
延長, To make something last longer
promote
促進, 晉升
prospect
前景, 展望
proslavery
支持奴隸制度的, in support of slavery
syn-, sym-
together, same 一起, 相同
synonym
同義字
photosynthesis
光合作用, process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches
symbiosis
共生, The relation between two different species of organisms that are interdependent