1. I have been standing on one foot for more than three minutes. 我独脚站立已有三分多钟了。
more than 意为“超过、多余”，相当于over。如：
I have more than one hundred books. 我有一百多本书。
more ... than意为“比……更……”，more 后多接名词、多音节形容词或副词的原级。如：
I have more books than Danny. 我的书比丹尼的多。
This film is more interesting than that one. 这部电影比那部更有趣。
2. The average blue whale is about four times as big as the biggest elephant. 一般的蓝鲸大约是最大的大象的四倍。
