The customer became obnoxious when the agent could not offer him a full refund.

當客服人員無法提供全額退款時，那位顧客變得非常令人反感。

Several passengers complained about an obnoxious traveler talking loudly on the phone all night.

好幾位乘客抱怨有個旅客整晚大聲講電話，令人反感。

Please avoid sending obnoxious reminder emails; one polite follow-up is usually enough.

請避免寄送令人反感的催促信件，通常禮貌地追蹤一次就夠了。