| 釋義 |
upon 義務(wù)階段1500 全國(guó)卷頻次：17 /??p?n/ prep. 在…上面；在…后，立即；即將來(lái)臨；在…的時(shí)候、當(dāng)…時(shí)，一…就… 高考真題原句提選：Father has left for London on business upon my arrival, so I didn’t see him.我剛到學(xué)校，父親就去倫敦出差了，所以我沒(méi)有見(jiàn)到他。When the explorers first set foot upon the continent of North America, the skies and lands were alive with an astonishing variety of wildlife.當(dāng)探險(xiǎn)家們第一次踏上北美大陸時(shí)，天空和大地充滿(mǎn)了令人驚嘆的各種野生動(dòng)物。 |