If you meant in two separate sentences:
Artificial: I hate artificial intelligence, because every time I look at them, I think of global doomsday
Every time I go home after school, my younger brother will always mimic whatever I say, so yesterday I got annoyed and flung his teddy bear off the second floor
If you meant in one sentence:
My brother always wants to mimic me, so it's no surprise that he got artificial teeth after I got mine, though he didn't need it
