That they increase in frequency in holding areas suggests the chimpanzees feel bad in these places.

而这些行为在黑猩猩们进入等候区时明显增多表明它们不喜欢那地方。

youdao

That they increase in frequency in holding areas suggests the chimpanzees feel bad in these places.

而这些行为在黑猩猩们进入等候区时明显增多表明它们不喜欢那地方。

youdao