当前 1.(在面前) before one; facing one 大敌当前 with a formidable enemy before us2.(目前; 现阶段) present; current 当前的国际形势 the current [present] international situation; 当前的中心任务 the central task at present; 当前利益 immediate interests; 当前世界的主要倾向 the main trend in the world today; 当前的问题 live question; 当前位置 current location; current position; 当前用户 [计算机] active user
大敌当前 be confronted with [by] a formidable enemy; a formidable enemy stands before...; be faced with a formidable foe; face a formidable enemy; faced with powerful enemies; in the face of archenemies; with a formidable enemy right in front; with dangerous enemy ahead 大敌当前, 我们必须加强团结。 we must strengthen our unity in the face of powerful enemies
Option , a diagnostic message is printed on the console or to a log file every time the gc runs , including how long it took , the current heap usage , and how much memory was recovered 选项调用jvm ,那么每次gc运行时在控制台上或者日志文件中会打印出一个诊断信息,包括它所花费的时间、当前堆使用情况以及恢复了多少内存。