Septupling
a. 七倍的；七的\\nvt. 乘以七倍\\nvi. 成七倍\\nn. 七倍
🗣️ 情景例句
She has nobody she can turn to.
她求助无门。
I'm going to show him how to write.
我正要指点他如何写字。
It is bacteria that have generated the oxygen we breathe on earth.
正是细菌生产出我们在地球上呼吸的氧气。