My older brother is going on a business trip to Tehran next month.
Tips
culture
Phonetic transliteration of "Tehran": 德 (dé) for "te", 黑 (hēi) for "h", 兰 (lán) for "ran". Tehran sits at the foot of the Alborz mountains and is one of the most populous cities in the Middle East, with about 9 million residents.
memory
Mnemonic: 黑兰 reads like "black orchid" — a striking image to anchor a city you may not visit often.
