而这些的遊戲難度相對較高，需要數名工作人員互相合作才能夠完成。因此我們

而这些的遊戲難度相對較高，需要數名工作人員互相合作才能夠完成。因此我們安排了8位工作人員分別去負責這四項遊戲。

結果 (英文) 1:

The difficulty of the game is relatively high, several staff members co-operate with each other to complete. So we arranged for 8 staff members responsible for each of the four games.

結果 (英文) 2:

These difficulty of the game is relatively high, the number of staff required to cooperate with each other to complete. So we arranged for eight staff members were to be responsible for these four games.

結果 (英文) 3:

And these games are relatively high degree of difficulty, the need for a number of staff to cooperate with each other to complete. So we arranged for 8 staff to be responsible for these four games.