adj.不诚恳的;贰心;二心;
例句:
Silvia's smile looks insincere.
西尔维娅的微笑很做作.
None of us like him because he is insincere.
他总是假模假式的,我们都不喜欢他.
Her words rang hollow , ie What she said sounded insincere.
她的话听起来很虚(言不由衷).