proof - 증거 ex)I don't believe it unless you can show me some proof. analyse - 분석하다. ex)Geologists use scientific techniques to analyse samples of rocks. welcome - 환영하다. ex)All my classmates are very friendly and make me feel welcome from the first day. pebble - 자갈 ex)There are lots of shells and pebbles on the beach but not much sand. arrange - 마련하다. ex)My school often arranges filed trips for t..