Graptozoa
笔石纲
🗣️ 情景例句
Before we go to the gallery,
在我们去画廊之前
These buildings are supposed to be earth quakeproof.
这些建筑物是耐震建筑才对。
He believed that everyone should be prepared to do heavy work, from the leaders to the poorest peasants.
他认为从领袖到最穷苦的农民，每个人都该乐于从事重体力劳动。