be insincere

• 不信

be insincere的用法和样例：

例句

1. Rather, it would be ingratitude and contempt not to believe.
   其实，不信才是藐视上帝的恩典，不感谢。
2. Never tell me that the tunnel through the mountain can be finished in four years.
   我不信穿过这座山的隧道能在四年内完成。