Erythroxylon
可卡因
🗣️ 情景例句
Glad to see you. Good-bye.
很高兴见到你。再见。
'Tis altogether vain to learn wisdom and yet live foolishly.
枉自学聪明，却做愚蠢事。
This echo-location in bats is often compared with radar, the principle of which is similar.
蝙蝠这种回声定位常常可与雷达相比较，其原理是相似的。