Friend, is an umbrella in summer to block the light rain from cloudy days.

朋友是我们走在夏日细雨蒙蒙时手里撑着的一把雨伞。

youdao

On the contrary, the base metal film is usually thicker to block the light from leaking into the substrates.

而其下层金属膜一般较厚，用以隔绝镀膜衬底材料对波导结构的影响；

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Wear sunglasses big enough to block the light from above and below - they should have thick sides or wrap around.

你应当佩戴那种足够大，从上方下方都能阻挡紫外线的太阳镜——这种太阳镜应是厚边儿或者包住眼睛的(即镜框接触到眼睛上下方的皮肤)。

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In light of threats from the Israelis to block the flotilla of ships, Zehra Ozturk says she and her fellow pro-Palestinian activists from Turkey are not thinking about a blockade.

VOA: standard.2010.05.28

But it also carries a coronagraph to block the light from bright objects so it can see more easily nearby, dimmer targets - such as planets circling their stars.

BBC: Science & Environment

JVC's approach is to use liquid crystals to block the polarized light that would normally reflect to the screen.

ENGADGET: JVCs 70-inch D-ILA set dwarfs the competition HD

Karutz clamped them firmly to my head, tight enough to block out the light.

NEWYORKER: The Visionary