Their request was met with wide-eyed silence. After several long moments, a small hand slowly and waveringly went up, dr他们得到的回答却是孩子们睁大的眼睛和沉默。过了好久好久，才有一只小手慢慢吞吞地，犹犹豫豫地举起来，接着又放下去，接着再一次举起来。