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hold back 【句動-3】 （すごすごと）引き下がる、尻込みする、ためらう、遠慮する、手加減する、容赦する、気後れする、ひるむ

He hasn't held back from criticizing company decisions, acknowledging earlier this year that Sony made the mistake of being overly proprietary about its content. In a culture that values harmony, he isn't exactly viewed as a team player.

insturumental【形-1】 手段となる、役立つ、助けになる、役に立つ、有益な

Stringer said he still views Kutaragi as a key person at Sony and instrumental in developing the next-generation video-game console dubbed PlayStation 3, or PS3.

pass over 3［〜＋目＋over］ 〔昇進などで〕〈人を〉考慮に入れない, 除外する

I was passed over for promotion. 私は昇進を見送られた.

on pace このままのペースで行くと

The batter is on pace to break the single-season home run record. そのバッターはこのままのペースで行くと、1シーズンのホームラン記録を破ることになる。

on the drawing board 計画の段階で

The company had other great inventions on the drawing board at that time. その会社には、そのとき他にも計画段階での優れた発明があった

Dozens of gadgets -- from an iPod phone to wireless iPods that talk to one another to the ultimate all-in-one home-cum-car media hub -- appear to be on the drawing board or, in some cases, already in prototype.

back to the drawing board （事がうまくいかなくなって）最初［計画］の段階に戻って、振り出しに戻って

The safety test results meant that it was back to the drawing board. 安全テストの結果は、最初からやり直しということを意味していた