Cycloolefine
[化] 环烯烃
🗣️ 情景例句
She couldn't get over her shyness.
她无法克服羞怯。
If you can find another pair of tickets we'll have enough for a dozen people.
如果你能再找到两张，我们就可以有十二个人去了。
It has been found that certain bats emit squeaks and by receiving the echoes,
人们发现，某些蝙蝠能发出尖叫声，