1. oblateness [bi m 4 n l ǜ]: oblateness of ellipse. It is expressed by the ratio of the difference between the long radius and the short radius of an ellipse to the long radius [α = (a-b)/a]. Used to indicate the flatness of the ellipsoid of revolution or the ellipsoid of the earth. The larger the α value, the flatter the ellipsoid.

sentence making: geodynamic oblateness is also an important physical quantity in the calculation of nutation theory.

2. Flat food [bi m n shi]: dialect. Pasta such as dumplings and pot stickers.

Sentence making: Duck soup, chicken soup, meat and bone soup, boiled meatball soup, jiaozi soup, flat food soup, wonton soup, etc. can be used to bring out the best taste, which is the best choice for modern food condiments.

3. Lentils [bi ? n dò u]: panicum miliaceum, with trailing stems and dark purple butterfly flowers, is widely cultivated for viewing or eating its pods and seeds.

Sentence making: Purchase: beans, lentils, dried food, sunflower seeds, red kidney beans and white kidney beans.

4. Tuanbian [tuá n bi ? n]: a flat container made of bamboo. Round, shallow mouth

Sentence: Grandma uses a dough flat to hold water.

5. Inscription [tí bi ? n]: Inscribe a plaque.

Sentence making: The boss made a problem flat for his shop.

6. Look down upon [kà n bi ∥ n]: it means to look down upon; Underestimate others.

Sentence: Don't look down on anyone.

7. Flat mouth [bi ǐ n zu ǐ]: Pie mouth: duck, also called flat mouth.

make sentences: don't always show your flat mouth to others.

8. oblate circle [bi ǐ n yuá n]: circular with small thickness; Ellipse.

Sentence making: Her mouth is oblate, and a sharp corner of her mouth bends between her cheeks, connecting with deep dimples like spring eyes, which is very sweet.

9. Bianqing [bi m 4 n q Ο ng]: a kind of flat and blue stone born in the valley, which can be used as medicine and painting pigment.

Sentence making: The herbalist brought back a piece of flat green.

11. [biǎn shàn] [bi m 4 n sh à n]: I still say that I am not good at everything.

Sentence: "The degree of flat goodness (that is, the statutes that are generally suitable for good deeds) should be followed by Peng Zu by treating qi and preserving health, and Yao and Yu should be matched by self-cultivation and self-naming.