speed step的用法和樣例：
例句
- People of genuine ability should be promoted without hesitation and given pay raises of more than one step at a time.
對那些真正有本事的人，要放手提拔，在工資級別上破格提高。 - This is frequently used to step load virtual users to reach a certain load level before recording sample values.
這段時間通常用於在記錄採樣值之前使負載虛擬用戶達到特定的負載級別。
