A numerical ordering of the ends has been used throughout for convenience. 為了方便，全部應用諸端點的數值次序。
A box of twenty sets of sequencing fun puzzle cards stimulate kids to learn the ordering of life cycles and events. 一套二十副的次序卡不單令小朋友學習生命過程及事序，更可從重新排序的過程中領會到因果關係及邏輯性。
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