whereupon
01
于是, 因此
immediately after this; because of something mentioned
例子
They reached an agreement, whereupon they signed the contract.
他们达成了协议，随后签署了合同。
02
于是, 随后
used to indicate the location or place where something occurred
例子
He arrived at the castle, whereupon he beheld the magnificent courtyard.
他到达了城堡，在那里他看到了宏伟的庭院。
