Russia expresses regret for those lost in the hostage incident.
Don't obtain wealth at the expense of your conscience.
I've steeled myself to face a certain amount of sacrifice, effort and hardship if that's what it takes to fulfill my dream.
The soldier saved his friend at the cost of his own life.
The artificial satellite launched at the cost of the welfare budget did not work properly.
They are victims of the so-called war.
She passed the test at the expense of her social life.
She went out on a limb defending him, and now she has lost her job.
She brought up her child at the cost of her life.
She gave up everything for her children.
I would like to draw your attention to the fact that Kanjisho uses multiple sources of data provided by third parties.
The search results are provided by the wonderful Jisho API which itself uses various data sources which you can find on the jisho's website. The data concerning the kanji strokes are provided by the KanjiVG project, under the CC BY 3.0 FR license. I also use Tatoeba to provide example sentences and Kuroshiro to obtain the furiganas and romajis versions of the sentences.
If you find any vices, errors or malfunctions, please let me know so that I can correct them.