Hack Chinese™ Official

密

封

to seal up

食品包装必须保持密封。

Food packaging must be kept sealed.

文件袋要密封好，防止湿气进入。

The document bag should be properly sealed to prevent moisture from entering.

这个容器可以密封保存食物。

This container can seal and preserve food.

邮件中的文件需要密封。

The documents in the mail need to be sealed.

包裹必须经过密封处理。

The package must undergo sealing treatment.

这个容器有密封盖，可以长时间保存食物。

This container has a sealed lid and can preserve food for a long time.

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