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打印
1、send out
分发;散发
She had sent out well over four hundred invitations that afternoon.
那天下午她发出了远远不止 400 份请柬。
发出(信号、声音、光、热等)
The crew did not send out any distress signals.
机组人员没有发出任何求救信号。
Like bats, they send out sound waves and make sense of their environment from the echoes they receive back.
像蝙蝠一样，它们发出声波，然后根据收到的回音来了解周围的环境。
生出，长出(根茎、枝芽等)
If you cut your rubber plant back, it should send out new side shoots.
橡胶树修剪完后，应会长出新枝。
2、exist
存在;实际上有
He thought that if he couldn't see something, it didn't exist.
他认为自己看不见的东西就不存在。
Research opportunities exist in a wide range of pure and applied areas of entomology.
纯理论昆虫学和应用昆虫学的众多领域都存在着研究机会。
（尤指在逆境中）生存，生活
I exist from one visit to the next.
我的生活就是一个接一个的访问。
I was barely existing.
我勉强维持生计。
