The second injection should only have been given once the first drug had taken effect.

第2针本应只在第1针见效后才能注射。

《柯林斯英汉双解大词典》

In all, the study concludes that whereas prosecutors should only evaluate a case based on its merits, they do seem to be influenced by a company's record in CSR.

总之，研究结论为，尽管检察官应该只根据案情本身特征来评判，但他们似乎的确会受到公司社会责任记录的影响。

youdao

This door should only be used in an emergency.

这道门只能在紧急情况下使用。

《牛津词典》

But finer materials such as compost should only be two and a half to seven and a half centimeters high.

VOA: special.2009.06.23

and they should only make investments if there's really a--if they can see a really compelling case.

他们应在只有在,非常好的机会出现的时候,才进行投资。

耶鲁公开课 - 金融市场课程节选

I hope you remember from the Sixth Elegy, the Sexta Elegia, that we read a few classes ago that Milton had told his friend Charles Diodati ; that an aspiring epic poet should only drink water; ; two, should refrain from eating meat; and three, should keep his body chaste.

我希望你们还记得《Sexta，Elegia》的第六挽歌,我们前几课读的，讲弥尔顿跟他的朋友查尔斯说,一个有抱负的史诗诗人应该只记得喝水;,二，应该避免食肉;,三，应该保持自己身体的纯洁。

耶鲁公开课 - 弥尔顿课程节选

Obviously, you should only name individuals whom you eminently trust to serve as your attorney-in-fact.

FORBES: Estate Planning Overview and Objectives

But in Osawatomie, Roosevelt argued that individuals should only earn fortunes in service to their communities.

FORBES: Obama Misreads Roosevelt In Speaking In A Rooseveltian Tone

He said further regulation of the press should only happen if it was "absolutely necessary".

BBC: Hacking: Miliband and Clegg seek media ownership limits