A. automatic vacuum cleaner
B. digital/ smart watch
C. solar/ electronic streetlight
D. recycled furniture
E. second - hand junk
F. waterproof phone
A. automatic
B. digital, smart
C. electronic, solar
D. recycled
E. second-hand
F. waterproof
A. automatic
B. digital, smart
C. electronic, solar
D. recycled
E. second-hand
F. waterproof