jump-down

基本解释

Known as the forest transition, this can be visualised as a curve in the shape of a ski-jump, first sloping down steeply and then turning up gently as the forest creeps back.
這一過程被稱爲森林轉變，它可被形象地表現爲一條跳台滑雪型的曲線：一開始陡然下滑，之後隨著逐步還林，曲線緩緩上陞。
On Monday, China Telecom reported a jump in full-year profit after a write-down hurt year-earlier results.
周一，中國電信宣佈全年利潤大幅增長，其上年同期業勣因沖銷而受損。
On Monday, China Telecom reported a jump in full-r profit after a write-down hurt r-earlier results.
周一，中國電信宣佈全年利潤大幅增長，其上年同期業勣因沖銷而受損。

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