if we don't start to protect bats,they will d___ out in the future.

if we don't start to protect bats,they will d___ out in the future.
if we don't start to protect bats,they will d___ out in the future.

if we don't start to protect bats,they will d___ out in the future.
die
die out （指物种、家族、习惯、观念等）绝迹,消失；绝种；绝灭；淘汰

die

die out :（指物种、家族、习惯、观念等）绝迹，消失，绝种，绝灭，淘汰
如果你你还不开始保护蝙蝠，那么他们将灭绝。

希望能帮到你。。
祝学习进步O(∩_∩)O~

die
die out 灭绝