We were playing golf but we stopped after nine holes because of the rain.
Our golf game was shortened to nine holes because it started raining.
ーWe were playing golf but we stopped after nine holes because of the rain.
「私たちはゴルフをしていたが、雨のためハーフで切り上げた」
to play golf で「ゴルフをする」
to stop after nine holes で「ハーフで切り上げる」
ーOur golf game was shortened to nine holes because it started raining.
「私たちのゴルフゲームは雨が降り始めたので、ハーフで切り上げた」
to be shortened to nine holes で「９ホールに短くされる」＝「ハーフで切り上げる」
ご参考まで！
カナダ 
