尾巴: tail, colloquial pr....
倾诉: to say everything (that is on one's mind)...
酸: sour, tart, sick at heart, grieved, sore, aching, pedantic, impractical, to make sarcastic remarks about sb, an acid...
坠: to fall, to drop, to weigh down...
生意: business...
打: dozen, beat, strike, break, mix up, build, fight, fetch, make, tie up, issue, shoot, calculate, since, from...
代表团: delegation...
交换: to exchange, to swap, to switch (telecom), commutative (math), to commute...
阶级: (social) class...
工程师: engineer...
