词义说明
“be covered”是动词“cover”的被动形式,其核心含义围绕“覆盖”展开。本义是物理上的遮盖,如“The ground is covered with snow.”(地面被雪覆盖。)由此引申出抽象含义:1)被包含或涉及,如“This topic is covered in Chapter 3.”(这个话题在第3章中涉及。)2)被保护或保障,如“You are covered by insurance.”(你受保险保障。)3)足以支付,如“The fee is covered by the grant.”(费用由助学金支付。)4)被报道,如“The event was covered by local media.”(该事件被当地媒体报道。)这些义项共享“覆盖”的意象:物理覆盖、范围覆盖、保护覆盖、费用覆盖、信息覆盖。