" We were surprised to find higher levels in infants than adults, but later tried to understand various sources of exposure in infants, " Kannan said.
“我们惊讶地发现婴儿的水平高于成人,但后来试图了解婴儿的各种接触来源, ” Kannan 说。
单词 | source of exposure |
例句 |
原声例句
精选英语短文 " We were surprised to find higher levels in infants than adults, but later tried to understand various sources of exposure in infants, " Kannan said. “我们惊讶地发现婴儿的水平高于成人,但后来试图了解婴儿的各种接触来源, ” Kannan 说。 |
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