ni
ni — noun
1. A UK government system of social insurance that requires workers and employers t
A UK government system of social insurance that requires workers and employers to make regular payments to fund state pensions, unemployment benefits, and the National Health Service.
Jin pays National Insurance contributions from her monthly salary as a teacher in Manchester.
collocation: National Insurance contributions
Self-employed workers in Britain register for National Insurance within three months of starting their business.
Elena checked her National Insurance number before completing a tax form for her London job.
Tanvi received her National Insurance card after starting her first part-time job at a bakery.
- social security
used in the US for a similar system of government payments
文法句型
NI + noun (e.g. NI contributions, NI number)
用法筆記
Usually written as the abbreviation NI in official forms and documents. Each person in the UK has a unique National Insurance number.
常見錯誤
2. A hard, silvery-white metallic element that is mixed with other metals to make s
A hard, silvery-white metallic element that is mixed with other metals to make strong alloys such as stainless steel, and is also used in coins and batteries.
Elena collects old coins made from nickel because of their shiny silver colour.
collocation: made from nickel
The stainless steel kitchen sink contains nickel, which gives it strength and resists rust.
Hassan's watch strap caused a skin rash because he is allergic to the nickel.
Stefan recycles batteries at the local centre to recover nickel for the environment.
文法句型
Ni (chemical symbol) + verb
用法筆記
On the periodic table the symbol is Ni. Nickel allergy is a common cause of contact dermatitis from jewellery, belt buckles, and watch straps.