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]
先
xiānㄒㄧㄢ
early; prior; former; in advance; first[cedict]
是
shìㄕˋ
is; are; am; yes; to be[cedict]
肌腱
jī jiànㄐㄧ ㄐㄧㄢˋ
(anatomy) tendon; hamstrings[cedict]
然後
rán hòuㄖㄢˊ ㄏㄡˋ
after; then (afterwards); after that; afterwards[cedict]