急!!!十万火急!!!帮忙翻译几句中译英可以吗?谢谢,请尽快!!!!~~

He jumped into the river without any hesitation and saved the drowning child.

In order to communicate with those people, we have to learn their language.

Cutting too many trees and using pesticide will destroy the balance of ecosystem.

We are looking foward to meeting our old friends again in Shanghai.

Tom glanced at his watch and got down to his own work.

1.He jumped into the river without hesitationg to save that drowning child.
2.We must study their language in order to communicate with them.
3.Abused doing of cutting trees and using pesticide would upset the biological balance.
4.We are looking forward to seeing our old friends again.
5.Tom glanced at his watch and then got down to his own work.