it took a long time

• Once a lingua franca is established , it takes a long time to shift
  通用语言一旦形成，它的地位就不会在短时间内受到撼动。
• A . five hundred years ago it took a long time for news to reach other countries
  五百年前，消息要花很长时间才能到另一个国家。
• It took a long time before the idea behind bell ' s photophone became practical
  贝尔花了很多时间，才把光影电话的概念付诸实践。
• It took a long time for aviation industry to find revenue management methods
  航空界经过了较长的时间才找到了收益管理的方法。
• It took a long time for men to learn how to separate the electrons from their nucleus
  人们花费很长时间才学会怎样把电子同原子核分开。
• Now i see . these sculptures are made by aliens and it took a long time
  克鲁德：噢，我明白了。这些石像是外星人造的，不过这要花多长时间呢！
• C : now i see . these sculptures are made by aliens and it took a long time
  克鲁德：噢，我明白了。这些石像是外星人造的，不过这要花多长时间呢！
• The cheers are usually not long , but it takes a long time to practice shouting them together
  鼓励的呼喊声一般都不长,但要花费很长时间练习才能齐声喊出。
• The cheers are usually not long , but it takes a long time to practice shouting them together
  鼓励的呼喊声一般都不长，但要花费很长时间练习才能齐声喊出。
• It took a long time and a lot of hard work , but happiness returned to the brooke house
  虽然这花了很长的时间和许多的心力，但是鲁家夫妇终于又找回了快乐。