1. 大陆   island   continent   glacier   peak   Hint Half-n-half Clue   2. 高原   desert   city, town   plateau   river   Half-n-half Clue   3. 平原   oasis   island   plain   reef   Half-n-half Clue   4. 河   river   lake   plateau   city, town   Half-n-half Clue   5. 礁石   waterfall, falls   reef   strait   plain   Half-n-half Clue   6. 海角   cape   plain   city, town   continent   Half-n-half Clue   7. 海   sea   lagoon   bay   continent   Half-n-half Clue