1.   Her expression suddenly altered.

2.   His expression did not alter.

3.   And as his hand caressed her scalp, his expression had subtly altered.

4.   His expression never altered as he looked at her.

5.   Knowing that expressions can alter our mood, a Japanese scientist has built a facial robot that has the potential to create and respond to expressions.

n. + alter >>共 498
change 3.51%
company 2.42%
government 1.57%
people 1.33%
official 1.33%
attack 1.21%
technology 0.97%
law 0.97%
president 0.97%
proposal 0.85%
expression 0.61%
expression + v. >>共 133
be 42.86%
come 3.57%
change 3.57%
seem 2.50%
become 2.32%
have 2.32%
go 2.32%
cross 1.61%
mean 1.61%
turn 1.61%
alter 0.89%
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