triple

英 ['trɪp(ə)l] 美 ['trɪpl]

triple 三倍的，三重的

tri-, 三，-ple,倍数，词源同 fold,treble.

triple (v.): late 14c., from Medieval Latin triplare "to triple," from Latin triplus "threefold, triple," from tri- "three" (see tri-) + -plus "-fold" (see -plus). Related: Tripled; tripling.
triple (adj.): early 15c., from Old French triple or directly from Latin triplus (see triple (adj.)). As a noun, early 15c., "a triple sum or quantity," from the adjective. The baseball sense of "a three-base hit" is attested from 1880. Related: Triply (adv.). Triple-decker is from 1940 of sandwiches and wedding cakes, 1942 of beds.

1. In 1882 Germany, Austria, and Italy formed the Triple Alliance.: 1882年，德国、奥地利和意大利组成了三国同盟。

2. The merger puts the firm in a position to triple its earnings.: 合并可使公司利润增长两倍。

3. The mine reportedly had an accident rate triple the national average.: 据报道，该矿事故发生率是全国平均水平的3倍。