Echidnotoxin
蛇毒蛋白
🗣️ 情景例句
Bicycle theft is on the increase in the big cities.
大城市里盗窃自行车的案件与日俱增。
How much is the telephone bill a month?
每个月电话费要多少钱？
This combines a typewriter keyboard, a printer and a computer.
这种机器把打字机键盘、打印机和电脑连接起来。