An extra wheel mounted to its frame spun backwards and canceled out the gyro effect.
他在后轮的车架上安装了一个附加轮以抵消陀螺效应。
In some situations where Backwards Compatibility mode is in effect, the first member of a sequence will be taken when an atomic value is needed.
在一些向后兼容方式有效的情况下，如果需要原子值，那么将选取序列的第一个成员。
When the argument has more than one member, either function normally raises an error, but fn: string (seq) will not raise an error when Backwards Compatibility mode is in effect.
如果参数有多个成员，通常情况下两者都将引发错误，但是如果采用了向后兼容方式，则fn： string (seq)不会造成错误。
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