1·This makes them more efficient than swallowtail butterflies (3.6), fruit flies (1.8) and bumble bees (2.5).
他比凤蝶（3.6），果蝇（1.8）及大黄蜂（2.5）更为高效。
2·The citrus swallowtail , beautiful and animate, gave happiness to this family.
美丽而富有生气的柑橘凤蝶，给这个家带来了欢乐。
1·You don't have to wear swallowtail for the semiformal opening party.
你不必穿燕尾服参加半正式的开幕酒会。