tā / yí / xiàng / gōng / lǚ / zhí / zé / qīn / zì / chǔ / lǐ / zuì / jí / shǒu / de / wèn / tí

他一向躬履职责，亲自处理最棘手的问题。

He has always personally fulfilled his responsibilities and handled the most difficult problems himself.