Gravitating
v. 受重力作用( gravitate的现在分词 ); 被吸引
🗣️ 情景例句
You're right. We'll talk to her about it.
说得对。我们要跟她谈谈。
God defend me from my friends; form my enemy I can defend myself.
防友靠天，防敌靠己。
Once the existence of this wave-length had been discovered,
一旦这种波长的实际存在被发现，