1 to accept or believe that sth is true even though you have no proof; to expect sth to be true 假设;假定;以为:
I assume that you have the necessary documents.我想你已经有必备的文件。Everyone assumed Ralph was guilty.人人都假定拉尔夫有罪。Everyone assumed Ralph to be guilty.人人都假定拉尔夫有罪。
2 to pretend to have or be sb/sth 假装;佯作:
to assume a false name使用假名
3 to begin to use power or to have a powerful position 开始行使权力或担任要职;承当(要职):
to assume control of sth得到某物的控制权