"he put an ice pack on the injury as a precaution"
"an insurance policy is a good safeguard"
"we let our guard down"
"he exercised caution in opening the door"
"he handled the vase with care"
来自柯林斯例句
来自柯林斯例句
来自《简明英汉词典》
来自柯林斯例句
来自柯林斯例句