寻找适合你的 英语 教师…
回答 · 1
2
The US Foreign Service Institute ranks languages according to how much time it takes an English speaker to reach "professional working proficiency." According to them:
Spanish is in category I, 600-750 class hours
German is in category II, 900 class hours.
Russian is in category III, 1100 class hours.
Chinese-Cantonese and Chinese-Mandarin are in category IV, 2200 class hours.
还未找到你的答案吗？
把你的问题写下来，让母语人士来帮助你！
Don’t miss out on the opportunity to learn a language from the comfort of your own home. Browse our selection of experienced language tutors and enroll in your first lesson now!
Start Learning Today
