2. Mr. Giles pleads ignorance as his excuse. 贾尔斯先生以不知情作为他的借口。
3. First, the object of our study pleads for definition. 首先,我们的研究目标是试图给出定义。
4. "Dare to be different, please don't smoke!" pleads one billboard campaign aimed at reducing smoking among teenagers—teenagers, who desire nothing more than fitting in. “敢于不同,请勿吸烟!”这是一个旨在减少青少年吸烟的广告牌的标语,因为青少年最渴望融入他人。