All that I have is a fine gentleman, a boot-jack, and a hair-comb.
我只有一位漂亮的绅士，一个脱靴器和一把梳子。
2
A real optical frequency comb spans the entire visible spectrum of light, and has very fine, evenly spaced teeth.
实际光学频率梳横跨整个可见光谱，各齿极细并均匀分布。
3
After she had bought a few things, the old woman said, "Let me try this comb in your hair; it is so fine it will make it beautifully smooth and glossy."