《get [gain, receive] (a [one's]) promotion》昇進｛しょうしん｝する、昇進が決まる、出世｛しゅっせ｝する
例文
however , it was not easy to attain this goal from the beginning because some systems , such as oni no sei (the automatic promotion of people at the age of 21 , whose parents were from imperial prince down to the fifth rank , or whose grandparents were higher than the third rank ), were set up to give priority to the descendants of men of high rank to get promotion easily . しかし、高位者の子孫には一定以上の位階に叙位する制度（蔭位の制）を設けるなど、当初からその目的は達成困難なものであった。
