I want _______ robots.A.to learn about B.to learn for C.learn about
I want _______ robots.A.to learn about B.to learn for C.learn about
I want _______ robots.A.to learn about B.to learn for C.learn about
I want _______ robots.A.to learn about B.to learn for C.learn about
A
选 A
首先要用不定式,因此排除C
第二,learn about 是了解,比learn for合适