That
https://gyazo.com/c642d3591899bcc8e00f79e3350dc4ed
It's thatで前の言葉を仄めかしている
Emily Smith.icon It’s that: “That” refers back to some implied action or method to ensure the baby or animal survives (perhaps feeding or weaning).
https://youtu.be/P2YSEMoM4l0
「そんなに」
It's not too(that) 〜でない
not tooは違和感があるのでnot thatを使うと良い