as long means 只要(zhi3 yao4)

as long as = so long as 只要(zhi yao) sometimes it equal "if" (如果 ru guo) for example: "as long as you finish your homework, I'll let you watch your favorite show." = "If you finish your homework, I'll let you watch your favorite show." ="只要/如果 你完成了你的家庭功課，我就會讓你看你最愛的電視節目。" I hope I can help you!

zhi3 yao4 or ru2 guo3