1. 鹽水湖   lagoon   valley   reef   strait   Hint Half-n-half Clue   2. 平原   mountain   plain   river   cape   Half-n-half Clue   3. 海   strait   city, town   sea   waterfall, falls   Half-n-half Clue   4. 綠洲   ocean   oasis   river   glacier   Half-n-half Clue   5. 海峽   island   oasis   peak   strait   Half-n-half Clue   6. 海洋   island   peninsula   valley   ocean   Half-n-half Clue   7. 國家   country   waterfall, falls   lagoon   continent   Half-n-half Clue