by (indicates passive-voice sentences or clauses); to cover; to wear[cedict]
移植
yí zhíㄧˊ ㄓˊ
to transplant[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]
它们
tā menㄊㄚ ㄇㄣ˙
they (for inanimate objects)[cedict]
的
deㄉㄜ˙
díㄉㄧˊ
dìㄉㄧˋ
of; structural particle: used before a noun, linking it to preceding possessive or descriptive attributive[cedict]