最近发现了一个很奇怪的现象Recently, I (found/came upon/noticed) a (very strange/weird) (occurrence/incident/phenomenon).ORI (found/came upon/noticed) a very (strange/weird) (occurrence/incident/phenomenon) recently.----------Recently - 最近Found/came upon/noticed - 发现Occurrence/incident/phenomenon - 现象They all work, just choose one.