She needed a clear head to carry out her instructions.
她需要一个清醒的头脑来执行命令。
《柯林斯英汉双解大词典》
2
Many apes and monkeys carry their own strain of S.I.V, but it's not clear how long the viruses have been infecting primates.
很多猩猩和猴子都带有自己的SIV毒株，但病毒感染灵长类多久了一直不清楚。
3
In the time between an appointment and clear evidence of results, your colleagues and superiors will watch and decide whether you carry influence in the organization.