可惜: it is a pity, what a pity, unfortunately...
关税: customs duty, tariff...
扭曲: to twist, to warp, to distort...
走后门: to enter by the back door, to gain influence by pull or unofficial channels, back door or under the counter connections...
小伙子: young man, young guy, lad, youngster...
多年: many years, for many years, longstanding...
建交: to establish diplomatic relations...
女朋友: girlfriend...
柜台: sales counter, front desk, bar, (of markets, medicines etc) OTC (over-the-counter)...
美滋滋: very happy, elated...