(located) at; (to be) in; to exist; in the middle of doing sth; (indicating an action in progress)[cedict]
上
shàngㄕㄤˋ
on; on top; upon; first (of two parts); previous or last (week etc); upper; higher; above; previous; to climb; to go into; above; to go up; to attend (class or university); third tone of putonghua[cedict]
与其
yǔ qíㄩˇ ㄑㄧˊ
it's better ... than ...[cedict]
共生
gòng shēngㄍㄨㄥˋ ㄕㄥ
symbiosis[cedict]
关系
guān xìㄍㄨㄢ ㄒㄧˋ
relation; relationship; to concern; to affect; to have to do with; guanxi[cedict]
的
deㄉㄜ˙
díㄉㄧˊ
dìㄉㄧˋ
of; structural particle: used before a noun, linking it to preceding possessive or descriptive attributive[cedict]