系

• Birds learn to fly by instinct .
  鸟儿学飞系由于本能。
• Thanks to his seat belt, he walked away unharmed .
  幸好他系了安全带，所以没有受伤。
• Gordan gave a complete system of 54 ground forms .
  Gordan给出了54种基本型的完备系。
• The beggar's limp was a fake .
  那乞丐的跛足乃系作伪。
• I'll keep this safety-belt on .
  我将系上这根安全带。
• Floor-beam webs have cracked in tied arch bridges .
  在系干拱桥的横梁腹板上发生裂纹。
• What does it concern us ?
  这在哪一点上和我们有关系？
• The bark was moored to the shore .
  小船已系在岸边。
• There is no connection between them .
  他们无关系。
• The old man made the sheet fast and jammed the tiller .
  老头儿系上帆脚绳，把舵柄夹紧。