忐忑不安

忐忑不安(feel uneasy, 胸が騒ぐ)
----tan3 te4 bu4 an1

例句

後天就要考試了,考生的心情都七上八下,忐忑不安.
Hou4 tian1 jiu4 yao4 kao3 shi4 le,kao3 sheng1 de xin1 qing2 dou1 qi1 shang4 ba1 xia4,tan3 te4 bu4 an1.
(There is an exam on the day after tomorrow,examinees all feel uneasy.)