TASK DEFINITION: In this task, given a sentence in the English language, your task is to convert it into the Japanese language.
PROBLEM: 75 people, mainly women and children, were aboard the vessel when it flipped over during a storm.

SOLUTION: 嵐の中でひっくり返った時、船には女性と子供を多く含む75人が乗っていた。

PROBLEM: He estimates that nearly two-thirds of the 278,000 yearly flights between Canadian cities cross over the U.S. border.

SOLUTION: 彼は年間278,000便の約三分の二が、米国の国境上を横切ってカナダの都市間を飛行すると推定している。

PROBLEM: As a precaution, the MoD is restricting its use on other boats until safety checks have been carried out.

SOLUTION:
万一に備えて、MoDは安全確認が実行されるまで、他の船でのその使用を制限している。