retrieve B2

/ɹɪˈtɹiːv/ run after, pick up, and bring to the master

tropical B1

/ˈtɹɑ.pɪ.kəl/ relating to or situated in or characteristic of the tropics (the region on either side of the equator)

thrive C1

/θɹaɪv/ To grow or increase stature; to grow vigorously or luxuriantly; to enjoy a state of excellent health and well-being; to flourish.

tropic B2

/ˈtɹɒpɪk/ of weather or climate