① 一般说到笔画,这里的“字”应该用character,如果没有特指中国的汉字,完整的称呼是CJKV character （中日韩越）.
② many 作形容词,不能跟在a bit等修饰词后面； 作名词是表示很多的数目、人或物.替换到原句中,都不通顺.
③ 可以这样修改一下：
The strokes of those characters are really a lot.
④ 但可以有更好地说法：
Those characters really have a lot of strokes.
There are a lot of strokes in those characters indeed.