Outsourcing
[计] 外部资源利用
🗣️ 情景例句
Don't forget to take lots of pictures.
别忘了照些照片。
Desperate diseases must have desperate cures.
毒病要用毒药医。
They may also have used wood and skins, but these have rotted away.
他们也可能用过木头和兽皮，但这类东西早已腐烂殆尽。