・それは話しが別だ
That's a separate issue.
・~にあてはまらない be not the case of ~
An engineer who invented the Winny software said he believes that Winny was not the case of the data leaks and that people using it are responsible for the problem.
・前置詞worthと名詞worth (bringとbring aboutの違いにも注意)
前置詞→The study by a major ad firm indicates that the big sporting event to be held in Germany will bring increased sales of digital electronics appliances worth some one billion dallars.
名詞→The quardrennial international football meet is also expected to bring about an extra half a million dallars worth of food delivery services to families watching the games on TV.
・航空機のaircraftは単複同形です。spacecraftも、要はcraftが船舶という意味で単複同形なのです。