roll-on

US /ˈroʊl.ɑːn/
UK /ˈroʊl.ɑːn/
"roll-on" picture
1.

走珠, 走珠止汗剂

a type of deodorant or antiperspirant applied to the skin with a ball applicator

:
She prefers a roll-on deodorant for daily use.
她喜欢日常使用走珠止汗剂。
Don't forget to pack your roll-on for the trip.
别忘了为旅行带上你的走珠止汗剂。