bikubiku suru
びくびくする
to be afraid of ; to be scared ; to be worried
Example
けんさけっかを きくまで、びくびくして いました。
I was very worried until I heard the test result.
bikubiku suru
to be afraid of ; to be scared ; to be worried
けんさけっかを きくまで、びくびくして いました。
I was very worried until I heard the test result.