- 重点词汇
- 突然
suddenly; rudely; cold; overnight; sharply; bang; short; dead; nowhere; unceremoniously; sudden; rude; abrupt; dramatic; unexpected; lightning; steep; snap; untimely; unannounced; precipitous; sneak; galvanic; drastic; convulsive; jerky; hurried; all of a sudden; out of the blue; all at once; with a jump; with a bang; apropos of; in your tracks; in a hurry; just like that
- 多的
More; many
- 原因
reason; cause; source; rationale; basis; occasion; motive; motivation; sense; meaning; anatomy; recipe; explanation; causation; causal