Gravics
重力场学, 引力场理论
🗣️ 情景例句
Stop complaining.
别抱怨了。
Beard the lion in his den.
老虎头上捉虱；太岁头上动土。
He sent yet another fax informing the journalist that if he did not reply soon he would be fired.
于是他又发了一份传真，通知那位记者说，若再不迅速答复，将被解雇。