The results showed that the immune function of erythrocytes in Zn deficiency ducks was reducing and presented time response relationship. Its mechanism was discussed.

结果表明：缺锌明显抑制鸭红细胞免疫活性，具有时间效应。

youdao

This experiment was the first time she'd been presented with wire, which makes it very impressive.

这个实验是她第一次接触金属丝，让人印象深刻。

youdao

He presented Albert with a rat, and every time the baby reached out to touch it, Watson hit a steel bar with a hammer to produce a horrendous clang.

他给艾伯特一只小鼠，每当小艾试图触摸它时，沃森都会用锤子敲击一根铁棒以发出一种可怕的声响。

youdao

It was the first time the award was presented.

VOA: special.2009.06.14

In the mean time, activists have presented a draft law to members of Parliament outlining their requests.

VOA: standard.2010.06.29

She described this as the normal business of opposition, and promised that a uniform view would be presented in time for the election.

BBC: News Online

Mr. ERIC LIPSET (Resident, Exeter, New Hampshire): I took a position that I believed the evidence that was presented at the time.

NPR: Undecided Voters Weigh In on GOP, Democratic Debates

In contrast: the 12-volume paperback edition of Dance to the Music of Time presented by its author, Anthony Powell, to an Oxford library.

FORBES: Guilt By Association: Book Inscriptions From the Famous and the Infamous