American companies freeze job descriptions and don't recruit people. The admission notice has accepted you.
Offer, the full name of offerletter, is interpreted as employment letter and admission notice in Chinese, but there is no unified name. Some people call it "the letter of admission", some people call it "the letter of employment" and some people call it "the invitation letter". Employment credit officially provides jobs for job seekers and provides important information, including start date, salary, working hours and positions.