shy

The shy student sat at the very back of the classroom and rarely raised his hand to answer questions.

(Chinese) 那个害羞的学生坐在教室最后面，很少举手回答问题。

She felt extremely shy when she was suddenly asked to give a speech in front of the large audience.

(Chinese) 当被突然要求在众多观众面前演讲时，她感到非常害羞。