Petrography
出国 Abroadn. 岩相学
🗣️ 情景例句
No sweat! I'd be happy to help.
没什么！很高兴我能帮上忙。
Proverbs are short sentences drawn from long experience.
谚语言短简，得自老经验。
when she remembered that she had gone shopping after the home help had left and she knew that she had turned both keys in their locks,
但突然记起来了，帮手是在她出去买东西之前走的，她还记得曾用了两把钥匙把大门锁上了。