1·Then I could produce your confession at the last extremity to save young McCarthy.
以后我可能出示你的自白书，但只是在为了拯救小麦卡锡万不得已的时候。
2·And there was a captain of the name of Douglass, who had received orders to defend his ship to the last extremity.
有一个姓道格拉斯的舰长，奉命无论如何都要守护他的战舰。
3·Many insects are rich in in various nutritions, but we still have to choose insects's species. Don't eat any of them till the last extremity.
很多昆虫富含蛋白质，但吃昆虫也是有选择的，不到万不得已想吃的时候任何昆虫都不要吃。
4·In the evening Morgiana went to the same druggist's again, and with tears in her eyes, asked for an essence which they used to give to sick people only when at the last extremity.
晚上莫吉安娜又来到同一家药店，她的眼里含着泪水，向他们买他们只用于临终前的病人的香精。