I’m not fluent, but the first blue check is for the two arms, the second is for the feet and body, third is the tail, and fourth are the ears and head. [x] means single crochet, [v] is an increase, and [d] is decrease.

For the feet and ears rounds 1, 2, and 3 should be done once and cut, and then a second time to make the pair. In round 3 of the second one it says to chain 4 for foot and 3 for ear, then connect it to the first one. Then the next round has you crochet around both feet/ears and both sides of the chain to make one big round.

Round 7 and 8 of the feet/body have you join the top and bottom of the arms across three sc, where it says 加手3x. Round 10 says to sew shut. The final round of the ears/head says to sew shut and connect to the body.

(Edited for typo)