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]
四
sìㄙˋ
four; 4[cedict]
零
língㄌㄧㄥˊ
remnant; zero[cedict]
的
deㄉㄜ˙
díㄉㄧˊ
dìㄉㄧˋ
of; structural particle: used before a noun, linking it to preceding possessive or descriptive attributive[cedict]
really and truly[cedict]
aim; clear[cedict]
耕地
gēng dìㄍㄥ ㄉㄧˋ
arable land; to plow land[cedict]
严重
yán zhòngㄧㄢˊ ㄓㄨㄥˋ
grave; serious; severe; critical[cedict]
退化
tuì huàㄊㄨㄟˋ ㄏㄨㄚˋ
to degenerate; atrophy[cedict]
更
gēngㄍㄥ
gèngㄍㄥˋ
to change[cedict]
more; even more; further; still; still more[cedict]