附带的

Variable Terrain Cost: In this tutorial and my accompanying program, terrain is just one of two things ? walkable or unwalkable.

在本教程以及我程序里，地形只有两种情况：可行走和不可行走。

Britain has promised Rwanda $100m in aid a year over the next decade, with only “light conditionality” (in essence, an understanding Rwanda will not reinvade Congo).

英国也承诺卢旺达在今后10，每会向他们提1亿美元援助，但“微制约性”（也就是说，就卢旺达不回再次侵犯刚果而达成共识）。