List: HSK 7

crocodile, alligator

1. living thing, organism, life form
2. biology (as a subject of study)

1. shell, husk, casing
2. outer covering or protective layer of something

1. journey, trip, voyage
2. travel itinerary, route of travel

1. to concentrate, to focus, to pay close attention
2. concentrated, focused, attentive

1. step, stage, procedure (in a process or sequence)
2. steps, measures, actions taken

1. candidate, nominee (in an election or selection process)

1. addiction, craving, compulsive desire for something
2. to be addicted to, to crave

1. eyesight, vision, visual acuity

1. walking stick, cane, crutch