🧩 词语组成解析
n. [建]柱身凹槽(或突筋)
🗣️ 情景例句
If no one comes to claim Gemma,
如果没有人来认领Gemma，
How much flour did you want to use?
你要用多少面粉？
For example, you can send information abroad immediately, but mailing a letter might take a week or so.
例如，你能够马上发送信息到国外，但寄一封信可能要大约一周的时间。