The cold weather made the cement in the sidewalk contract until it finally cracked.
寒冷的天气使人行道的水泥收缩，最后终于裂开。
In very cold winter the pendulum will contract and the clock will go faster.
在寒冷的冬季，钟摆收缩，钟就走得快些。
The cold weather made the cement in the sidewalk contract until it finally cracked.
严寒的天气使人行道的水泥收缩，最后终于裂开。
They got cold feet at the last minute and refused to sign the contract.
他们在最后一刻胆怯了，拒绝签订合同。
He signed the contract and suddenly got cold feet the following day.
他签了合同但第二天突然胆怯起来。
He signed the contract and suddenly got cold feet the following day.
他签了合同但第二天突然胆怯起来。
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