1.rare 稀有的
It's extremely rare for it to be this hot in April.
四月份就這樣炎熱是極其罕見的
2.disassemble 拆開
We had to completely disassemble the engine to find the problem.
我們只好把發動機全部拆開以尋找故障原因。
3.excavate 挖掘
The site has been excavated by archaeologists.
這個遺址已被考古學家發掘出來。