like a pig to slaughter直译像一头待宰的猪，可以引申为待宰的羔羊，比喻命运掌握在他人而不是自己手中。

【例句】
The six employees were unaware the meetings were to tell them they'd been laid off, and they each marched down to the meeting room like a pig to slaughter.
这六位员工不清楚待会儿要举行的会议是要宣告他们被解雇，他们一个个就像“待宰的羔羊”一样进入了会议室。

When I did business with Michael, I was like a lamb to the slaughter—I had no idea he was such a criminal mastermind.
我在和迈克尔做生意时宛如“待宰的羔羊”，因为我完全不知道他是这样一个犯罪天才。