• belt 腰帶/皮帶；帶狀物
• asteroid belt (小行星帶)
小行星帶是太陽系內介於火星 (Mars) 和木星 (Jupiter) 軌道之間的小行星密集區域。
* The asteroid belt is a region of the solar system falling roughly between the planets Mars and Jupiter where the greatest concentration of asteroid orbits can be found.
* The main asteroid belt is estimated to contain millions of objects and is located between the orbits of Mars and Jupiter.