近年来，我国沿海地区赤潮越来越频繁，对生态环境、海水养殖业及人类健康造成了很大的威胁。

In recent years, the red tide in the littoral of our country is more and more frequent and have become to be a big threat to ecosystem environment, aquatic breeding industry and human healths.

youdao

近年来，我国沿海地区赤潮越来越频繁，对生态环境、海水养殖业及人类健康造成了很大的威胁。

In recent years, the red tide in the littoral of our country is more and more frequent and have become to be a big threat to ecosystem environment, aquatic breeding industry and human healths.

youdao