waterproof sth
waterproofed作为及物动词的过去式。
They waterproofed the basement walls.
他们给地下室墙壁做了防水处理。
使防水，使不透水
先理解核心含义，再看它在真实句子里的用法。
使防水，使不透水
made waterproof
一般现在时
He waterproofs his boots every winter.
他每年冬天给靴子做防水处理。
past
They waterproofed the tent last night.
他们昨晚给帐篷做了防水处理。
现在完成时
The fabric has been waterproofed.
这种织物已经做了防水处理。
规则动词，变化为加-ed
They waterproofed the tent before the camping trip.
他们在露营前给帐篷做了防水处理。
用法提示：过去式动词，表示完成了‘使防水’的动作。
The factory waterproofed the fabric to make it suitable for raincoats.
工厂给布料做了防水处理，使其适合做雨衣。
用法提示：过去式动词，描述对材料施加防水工艺。
The deck was waterproofed to prevent water damage.
甲板被做了防水处理以防止水损害。
用法提示：过去分词用于被动语态，表示甲板经受了防水处理。
waterproofed作为及物动词的过去式。
They waterproofed the basement walls.
他们给地下室墙壁做了防水处理。
被动语态表示被防水处理。
The tent was waterproofed before the trip.
帐篷在旅行前做了防水处理。
过去分词作定语。
We used waterproofed materials for the roof.
我们使用了防水材料做屋顶。
现在完成时。
The company has waterproofed all its products.
该公司已对其所有产品进行了防水处理。
grammar · medium
易错句子I need to waterproofed my shoes before the rainy season.
正确表达I need to waterproof my shoes before the rainy season.
waterproofed 是过去分词，不能用于不定式结构。不定式后应使用动词原形 waterproof。
grammar · medium
易错句子My jacket waterproofed last year.
正确表达My jacket was waterproofed last year.
waterproofed 作为动词的过去分词，在被动语态中需要助动词 be，否则句子缺少谓语动词。
混淆点：'waterproofed' 是动词过去式，表示'使防水'的动作；'waterproof' 是形容词，描述物品本身的特性。
混淆点：'waterproofed' 是动词，表示已完成的行为；'waterproofing' 是动名词，表示防水处理的过程或方法。
混淆点：'waterproofed' 强调经过处理达到完全防水；'water-resistant' 表示能抵抗水分但不完全防水，程度不同。
Choose the next layer that will help you use waterproofed with more confidence.
Recommended next
Missing: Collocations
Complete this area with collocations.
Includes Context & register & Memory tip
Analyze the context and learn memory tricks to remember it.
More ways to explore
Includes Synonyms & Antonyms
Expand your vocabulary with synonyms and antonyms.
Includes Spelling & sound
Explore words with similar spelling endings or sounds.
Includes Word components & Thematic vocabulary
Learn how to build related words using roots, prefixes, and thematic clusters.
Includes Idioms & Cultural references
Discover idioms, slang, and famous pop culture quotes.
Dictionary facts from ECDICT, WIKTIONARY.