Ketoalkylation
酮烷基化(作用)
🗣️ 情景例句
And then, two years ago, my wife died.
接着， 两年前我妻子去世了。
Honesty is the best policy.
诚实是上策。
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。