✅ 同义词
🗣️ 情景例句
How is your score in English?
你的英语成绩是多少？
Lightly come, lightly go.
易得易失。
Portable boiling elements that can boil small quantities of water are useful when the right voltage of electricity is available.
如果有相配的电压，可以煮少量水的便携式热水装置是有用的。