I have long been engaged in garment trim (waste textile) acquisition.

本人长期从事服装边角料(废纺织)收购。

youdao

Strong technical force, have long been engaged in a number of technology-based instrumentation production, marketing management team.

公司技术力量雄厚，有一批长期从事科技型仪器仪表生产、销售的管理团队。

youdao

English teachers and researchers have long been engaged in the study of teaching methods, but so far they have not found a method that is applicable to all language contexts.

英语教师和研究工作者一直致力于教学法的研究，但迄今也没有找到能针对所有语境的万能教学法。

youdao

The pair have been engaged in a long-running conflict with Sark's leaders.

BBC: Barclay brothers in Sark High Court battle

We should have been engaged over a long period of time, in a serious way, at least through diplomacy, not to allow this to get to a crisis situation where it now is.

CNN: Dems slam White House on Haiti policy