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Lesson 1: Say who you are
You will learn to introduce yourself and say who someone is.
A1 · 21 steps · about 20 min
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周
noun
perimeter, circumference
B2
- 1122から紀元前221年までの中国の帝国の王朝
- 儒教と道教の高まりが顕著な。
perimeter, circumference
しゅう
B2Upper-Intermediate
To find the circumference of a circle, multiply its diameter by pi.
If plaque is left on the teeth, it can cause cavities and gum disease.