1.strange [streindʒ]

adj. 陌生的,奇怪的

例句与用法:
Do you know why she is so strange to him?
你知道她为什么对他如此冷淡吗？
It's strange for her to be so rude.
真奇怪，她竟然会如此粗暴无礼。
He stood in a strange street.
他站在一条陌生的街道上。

2.extremely [iks'tri:mli]

adv. 极其,非常

例句与用法:
I found him extremely offensive.
我发现他非常令人讨厌。
The army is an extremely complex organism.
军队是极其复杂的组织。

3.plain [plein]

n. 平原,草原
adj. 简单的,平坦的,平常的,家常的
adj.纯的，不掺杂的

例句与用法:
The wind whipped across the plain.
大风扫过平原。
It's plain that he is the criminal.
很明显，他是罪犯。

4.Certainly ['sə:tənli]

adv. 当然

例句与用法:
She certainly bears you no malice.
她对你的确并无恶意。
Certainly, if the weather is fine.
如果天气好，当然可以。