1.So long 再见;很久
例句:My parents asked why I had waited so long to seek help.
父母问我,为什么等了这么久才去求助 。
2.make room for 为...腾地
例句:The whole village moved away to make room for the construction.
整个村子迁走,给这项建设让地 。
3.known as 被认为是
例句:He is known as a gifted orator.
众所周知,他是一位天才演说家 。
4.consists of 包含
例句:Cooking-salt consists of atoms of sodium and chlorine.
食盐由钠原子和氯原子构成 。