Relationship is about giving and taking; a mutual process. There must be a reciprocal factor in building a bond with business associates. Especially in the line of business, you lose some and you gain some. In a business relationship, you do not just take and take but offer a partnership by giving back something in return. First impressions count in a business relationship, too.
line of business理解成线上商务？in return,in是副词吗？
line在此为“行业”的意思。
We are engaged in the line of foodstuffs.大家从事食品交易。
As you know, we are a well-established firm in the line of textiles.你了解，我公司在纺织业有好的信誉。
in the line of business: 在贸易这个行业中。
in return 中，in为介词。介词短语表示：作为回报。
