The contract, if you were forced to sign it, is invalid.
むりやりサインさせられたのなら、その契約は無効です。
This ticket is valid for three days.
切符は３日間有効である。
Office managers expect accuracy, efficiency, and dedication.
仕事場の管理者は、正確さ、効率性、献身を期待する。
His contract runs for one more year.
彼の契約はもう１年間有効だ。
This ticket is good for three days.
この切符は三日間有効だ。
If I'm lucky enough for the medicine to work I can get to sleep after 1am but if I don't take it then I can't sleep until about 4am.
運よく薬が効くとき１時過ぎに寝れるけど、薬を飲まないと４時ぐらいまで眠れない。
This medicine is no protection against influenza.
この薬はインフルエンザには全く効かない。
The medicine did wonders for his health.
その薬は彼の体に驚くほどよく効いた。
The hospital that I went to for my allergies recommended me a shampoo that wouldn't trigger them. It's certainly effective - I think - but it's just way too expensive.
Penis enlargement supplements, as sold on sites and in magazines, have essentially no effect.
基本的にサイトや雑誌等で販売しているペニス増大サプリメントは効き目がありません。
"If it's a light workout, OK." "Right, so will we allow crotch-kicking and eyeball crushing?"
「軽くならいいけど」「うむ、では金的と目潰しは有効にするか？」
What's your strongest type of headache pill?
最も効果の高い頭痛薬はどれですか。
If you want to succeed, use your time well.
成功したいのなら時間を有効に使いなさい。
As yardsticks to measure the effectiveness of information retrieval there exist those called 'recall ratio' and 'precision ratio'.
情報検索の効率を測る尺度として、再現率と適合率というものがある。
It would be counter-productive to do such a thing.
そんなことをしたら逆効果になる。
His remarks had the opposite effect.
彼の発言は逆効果になった。
Effective use of disinfectant is an important subject in relation to infection control in hospitals.
病院における感染制御策を実践する上で、消毒薬の有効活用は重要な課題です。
This plan will serve its purpose to some extent.
この計画はある程度の効果が見込める。
You must make the most of your time.
時間はできるだけ有効に使わなければならない。
The holidays seem to be doing her health good.
休暇は彼女の健康に効果があるようだ。
Don't speak to him like that.
彼にああいう口の効き方をするな。
The shock robbed her of her speech.
彼女は、ショックのあまりくちが効けなかった。
You can be sure that the money you give them will be put to good use.
あなたが彼らに寄付するお金は有効に使われると確信してもよい。
Does this medicine actually help?
この薬は本当に効きますか？
This medication works instantly.
その薬はてきめんに効く。
If you do that, it will only bring about a contrary effect.
そんなことをしたら逆効果になる。
These quotations were effective in sending complex messages to his friends, because, in his day, people could quote from such authors with every expectation of being understood.
