如何使用 "impromptu" 造句

1. The stunning results of this impromptu survey prompted further investigation .
这种即兴的调查促进了我进一步的调查。
2. Security forces at a impromptu checkpoint marked by a small minibus wave us by .
驻扎在一个以一辆小面包车为标志的临时检查点中的安全部队挥手让我们通过。
3. Later in his impromptu speech mr sha turned to an american colleague , singling out bob orr , from the executive office of the secretary-general .
随后,沙祖康在他的即席演说中,把矛头转向一位美国籍同僚在秘书长执行办公室工作的波布奥尔。
4. His speech was met with impromptu applause .
他的讲话赢得了即兴的掌声。
5. Would it have been better to hear the impromptu ramblings of a nervous speaker in total cognitive meltdown ?
听一个紧张的演讲者即兴发表漫无边际的讲话,认知感完全崩溃,难道会更好吗?