that it's connected with the spraying of chemicals.这一切与化学制品的喷洒有关

connect with:与 ... 联系

He doesn't seem to connect with anybody.

他好像和谁都不来往。

He doesn't seem to connect with anybody.

他好像和谁都不来往。

相关短语:

connect up接通(接在一起)

She connected up the two computers.

她把两台计算机连接起来。

Here on the island of San Miguel, the breeding ground for California's sea-lions, some appear to be killing their young.位于圣米格尔岛的加州海狮繁殖区内竟出现了部分海狮杀害幼崽的画面

breeding ground:滋生地；繁殖场；繁殖区

This ditch was a breeding ground for mosquitoes and flies.

这条水沟是蚊蝇繁殖的地方。

appear to:看来似乎

He appears to have drunk a lot of liquor.

他似乎喝得醉醺醺的。

It appears to me that you are all mistaken.

我觉得你们全搞错了。