secure communication
保密通信

secure the prize
獲得獎品

secure one's ends
達到自己的目的

secure a creditor
為信貸作保

secure investments.
可靠的投資

have one's mind secure
放下心

be secure of victory
有必勝的信念

be secure from harm
不致受到危害

be secure against assault
堅不可摧,固若金湯

To secure one's agreement
征得...的同意