This particular custom has its origins in Wales.
這一特殊風(fēng)俗起源于威爾士。
It was his custom to approach every problem cautiously.
謹(jǐn)慎地處理每個問題是他的習(xí)慣。
The custom of lighting the Olympic flame goes back centuries.
點(diǎn)燃奧運(yùn)圣火的風(fēng)俗可追溯到幾個世紀(jì)前。