Pentaether
五醚, 四甘醇二丁醚
🗣️ 情景例句
The train is just up the street.
地铁车就在街的那一头。
Tomorrow Mark will hear from his manager about the job.
明天，马克将听经理谈有关工作的事。
If you touch them you may break something or have an accident and hurt yourselves.
如果你用手摸它们，也许你会搞坏机器，或者会发生事故，打伤你自己。