Toolbelts free both hands and lessen the risk of dropping hammers.
工具带解放了双手，并减少了锤子掉落的危险。
《柯林斯英汉双解大词典》
2
General Motors' shares went into free-fall on Thursday, dropping 31% after a rating agency threatened to downgrade its debt.
通用汽车的股票在周四自由落体，在某评价机构威胁要调低其评价后，股价下降了31%。
3
Sometimes just dropping everything, putting on a good pair of shoes, and heading out the door can be the surest way to cut the distractions and free up time for focused learning.