He must draw clear-cut lines defining us strategic interests, the breaching of which would have serious consequences.
对于美国的战略利益，他必须明确画出一道界线，逾越行为将导致严重后果。
2
Do things that they enjoy because that's where their interests lie and where they will draw their careers, jobs and direction their lives will take from.
做他们喜欢的事情，因为那是他们的兴趣所在，也是他们决定职业、工作，生活方向的东西。
3
Therefore the director have to adopt the important part of the story and abandon the rest parts, but these trivial plots draw more interests from the readers.