在较高收入国家，通过外科手术和化疗，部分患者的寿命可延长到几年以上。
In higher income countries, surgery and chemotherapy can prolong life for up to a few years in some patients.
通过减少流通中股票供给，回购的挥霍行为也使自己成为了延长牛市的一部分。
By shrinking the supply of shares in the market, the buy-back splurge played its own part in prolonging the bull market.
人们认为义务教育时间的延长将部分减少这一问题，而取得文凭可以使他们在学校多待的时间得到认可。
The extension of compulsory schooling was conceived partly as a way to tackle the problem, and the diploma was to make more years in school palatable.
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