英语语法分析

That is a generalisation, as there have been effects since the silents in 1900. But there was no special effects industry and effects-driven movies were rare.

那只是一种大概的说法，因为早在1900年，还是无声电影时代时就有特技了。但那时没有特技效果工业，而且使用特技的电影还很少。