ちょっと一杯[chottoippai] let's have a quick drink
ばつ一[batsuichi] being once divorced
一向[hitaburu] nothing but
サラダ一皿[saradahitosara] plate of salad

安全第一[anzendaiichi] safety first
一か八か[ichikabachika] sink or swim
一っ走り[hitoppashiri] spin (as in 'take a car for a spin')
一つ一つ[hitotsuhitotsu] one-by-one

いかなる場合でも[ikanarubaaidemo] in any case
このような場合に[konoyounabaaini] in this kind of situation
この場合[konobaai] in this case
そうでない場合は[soudenaibaaiha] if this is not the case
その場合には[sonobaainiha] in that case

繋ぎ合わせる[tsunagiawaseru] to connect
どの場合にも[donobaainimo] in any case
シアン化合物[shiankagoubutsu] cyanide
ボクシングの試合[bokushingunoshiai] boxing bout
亜米利加合衆国[amerikagasshuukoku] United States of America