People consider helping others as a noble obligation, and in the process of doing this they improve and perfect their own soul and morals.

人们认为帮助别人是高尚的义务，在帮助别人的过程中提升和完善了自己的灵魂和道德品质。

Noble said inventory sales were different from a sale and repurchase agreement, as the commodities trader had no obligation under the deal to buy the commodities back.

来宝表示，库存出售与“出售然后回购”协议不同，因为这家大宗商品交易商根据协议没有义务购回大宗商品。