infinity
/ɪnˈfɪnətɪ/noun
(pl. -ies)［mass noun］
1- the state or quality of being infinite无限（性）, 无穷（性）：
the infinity of space.
空间的无限性。
1.1
- count noun an infinite or very great number or amount无穷数, 无限量; 很大的数量：
an infinity of combinations.
无穷的组合。
1.2
- Mathematics a number greater than any assignable quantity or countable number (symbol ∞)【数】无穷大（符号：∞）。
1.3
- a point in space or time that is or seems infinitely distant无限远的地点（或时间点）：
the lawns stretched into infinity.
草坪绵延不断地延伸开去。
词源
late Middle English: from Old French infinite or Latin infinitas, from infinitus （see INFINITE）.