英语释义
1. a pin to hold the hair in place specifically a long U-shaped pin
2. something shaped like a hairpin specifically a sharp U-shaped turn in a road
3. having the shape of a hairpin
a hairpin turn also having hairpin turns
a steep hairpin road
4. a pin that is worn in your hair especially a pin shaped like a U that is worn to hold your hair in place
5. an extremely sharp turn in a road that is shaped like a U
6. a pin in the shape of a U for holding the hair in place
7. a region in single-stranded RNA or DNA that is double-stranded due to pairing between purine and pyrimidine bases in adjacent sequences of the RNA or DNA that are complementary and inverted