Question

my mother needs a robot help her.哪个单词错了

Answer 1

my mother needs a robot to help her，need sth to do sth，表示目的

Answer 2

need sth to sth
所以 在help前面加 to

Answer 3

my mother needs a robot to help her.

Answer 4

My mother needs a robot --> helper <--

or

My mother needs a robotic helper