例句：
It takes many hours to craft a single sign.
仅制造一个指示牌就需要花费数小时的时间。
Looking at the signs now I get a feeling of amazement, mixed with sadness.
现在看着这些指示牌，我感到惊讶而伤感。
Blance spent a week in Hong Kong and photographed more than 60 signs.
布朗斯在香港待了一周，拍摄了60余个指示牌。
