costly
🇺🇸
/ˈkɔːstli/
🇬🇧
/ˈkɒstli/
very expensive
The repairs were costly and took a long time to complete.
修理は非常に高額で、完了するのに長い時間がかかりました。
causing serious problems or losses
The war was costly in terms of human lives and resources.
その戦争は人的生命と資源の点で深刻な損失をもたらしました。