safety pin
US /ˈseɪf.ti ˌpɪn/
UK /ˈseɪf.ti ˌpɪn/

1.
安全別針
a pin with a guard that covers the sharp point when it is closed, to prevent it from sticking into the wearer and to fasten it more securely
:
•
She used a safety pin to fasten her skirt.
她用安全別針別住裙子。
•
He attached the badge with a small safety pin.
他用一個小安全別針別住徽章。