凹 (āo) — concave, sunken, indented; female (connector, e.g., a socket)

Definição

Exemplos

• 车门上有一个凹下去的地方。
  Chē mén shàng yǒu yí gè āo xià qù de dì fāng.
  There is a sunken spot on the car door.
• 这种镜片是凹的。
  Zhè zhǒng jìng piàn shì āo de.
  This type of lens is concave.
• 这个插座是凹的，要配凸的插头。
  Zhè ge chā zuò shì āo de, yào pèi tū de chā tóu.
  This socket is female; it needs a male plug.