equivalent: tương đương
She's doing the equivalent job in the new company but for more money.
collar: cổ áo
The bird has grey feathers with a lighter collar.
inflate: thổi phồng lên, làm phồng ra
He inflated the balloons with helium.
shell: vỏ
Brazil nuts have very hard shells.
removable: có thể tháo rời
This jacket has removable sleeves/a removable collar.