Selectron
[计] 选数管
🗣️ 情景例句
Genes are the very building blocks of life.
基因是生命最基本的构建者。
Has he studied French very long?
他学习法语很长时间吗？
Is it a black cat with one white ear and two white legs?
是那只长着一只白耳朵和两条白腿的黑猫吗？