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单词
test for contamination
例句
DEFINITIVE EXAMPLES 权威例句
The water supply is being
tested for contamination
(=the presence of unwanted or dangerous substances).供水系统在进行污染测试。
剑桥国际
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finn
finned
finnegan
finney
finnic
finnieston
finnish
finno-ugric
finns
fins
finsbury
finsh
finshing
finzer
fiona
fiord
fiorina
fipple
fir
fir cone
fir tree
firbank
fire
fire a gun
fire a salute
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更新时间:2026/5/18 10:57:18