Steinkern
[地质]石核, 石核模
🗣️ 情景例句
It's something that only you and Harry can work out.
这件事只有你和Harry才能定夺。
I eat dinner at about 7 o'clock.
我在大约7点钟吃晚饭。
I want some envelopes,please.
请给我拿几个信封。