31.  They followed rivers for convenience, then struck out in a straight line, bisecting mountain ranges, cutting watersheds in half.

32.  They sat down in a straight line.

33.  This is rather like being able to draw a straight line tangent at any point on a smooth curve.

34.  Topological feature based methods detect and code straight lines and the orientation of strokes.

35.  Try to keep them in a fairly straight line along each joist.

36.  We fell into position forming a straight line with Orange One and Orange Three after he took the controls.

37.  When glass fibre tubular spars were standard practice, leading edge distortion would form an otherwise straight line into a swan-neck shape!

38.  The British parcelled up Africa with the help of the other Europeans, and straight lines were drawn on maps to represent the borders of countries.

39.  Walk in a straight line.