shield

Compared meaning: to block or protect something (verb).

比较义项：遮挡、掩护（动词）。

• screen

  Screen means to block something from being seen or detected, using a barrier such as trees, curtains, or a partition; it focuses on concealment, not necessarily protection from harm.

  screen指用树木、窗帘或屏风等障碍物挡住视线，使某物不被看见或察觉，侧重“遮蔽”而非防止伤害。

  The tall fence screened the pool from the neighbours' view.

  高高的围栏挡住了游泳池，使邻居看不到。

• shield 本词

  Shield means to actively protect someone or something from danger, harm, or unpleasant things, often by placing oneself or an object between them and the threat.

  shield指主动保护某人或某物免受危险、伤害或不良影响，常表示用自己身体或物体挡在其与威胁之间。

  He shielded his eyes from the bright sun with his hand.

  他用手护住双眼，挡住刺眼的阳光。

Screen and shield both mean to block or protect something. Screen means to hide something from view, using a barrier like trees or curtains, without necessarily protecting from harm. Shield means to actively protect someone from danger, often by standing between them and the threat.

这两个词在“遮挡、掩护”这一义项上意思相近，但语气不同：screen强调用屏障挡住视线或探测，使某物不被发现，偏向“遮蔽”；shield强调主动保护某人免受伤害或危险，语气更强、更具防御性。此处不比较screen作名词“屏幕”或动词“筛选，审查”的用法，也不比较shield作名词“盾牌”的用法。