The order is accepted subject to the unusual, unavoidable condition, such as strike, fires, or cause beyond our control. 對此次訂單,如果發生罷工、火災或其他不可抗拒的事,實在無法避免時,可以變更條件,使其接受。
Due to circumstances beyond our control the lecture was cancelled. 由於無法控制的情況,講座取消了。