And many wild animals are being hunted commercially for food.许多野生动物被猎杀以获取食物

hunt for搜寻；寻找

John set out that day to hunt for work.

约翰那天外出找工作。

I've found the book I was hunting for.

我已找到了我当时在搜寻的那本书。

At this rate, some species are almost certainly heading for extinction.按这种速度有些物种将濒临灭绝

head for朝 ... 方向去

The boat was heading for some rocks.

那船正驶向礁石。

The ship came about and headed for the shore.

轮船调转般向朝海岸驶去。

These hunters have become part of a new and unlikely alliance.狩猎者们结成全新的，看似不太可能的联盟

part of一部分

A part of this urgent task was allotted to us.

这项紧急任务的一部分分给了我们。