Similar to line, shapes are great for marking the boundaries of content areas, both small and large.

与线类似，形状无论大小，均很适合用来做网站内容区域的界线。

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All she has is a small patch of grass and four 12 studs, marking the boundaries of her plot, a tree that in the early days provided frequent shade, lots of sunshine.

她有的只是一小格草地，那用四个钉子来界定的方寸之地，一棵早上能稍稍遮点荫的树，以及大片大片的阳光。

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Most of the controlled assessment work was submitted in the summer and when examiners saw evidence of over-marking, exam boards raised grade boundaries, leading some pupils to receive poorer grades than expected.

BBC: GCSE English: Teachers' anger over generous marking claim

Speaking to the BBC after his meeting with the watchdog, Brian Lightman, general secretary of ASCL, said the issue was not re-marking papers, but altering grade boundaries and "putting right what's happened".

BBC: Heads call for regrading of English GCSEs

In its own report into the controversy, published on 2 November, Ofqual concluded that pressure on schools in England to hit targets led to overgenerous marking of coursework by teachers and that, as a result, external examiners had to raise grade boundaries in the June exams.

BBC: Heads challenge Ofqual to publish all GCSE grade research