Union contract

union ['junɪən]

n. 同盟，联盟;协会，工会;联合，团结; adj. 工会的;

un单一+ion名词后缀→联成一体→联合，工会，联盟

contract ['kɑntrækt]

n. 合同;契约;协议;

con共同+tract拉→共同拉回去→收缩；对大家都有制约→合同

Rock-a-bye, baby, on the tree top,

摇呀摇， 小宝宝， 在树梢，

Perhaps I can sneak out of the classroom unnoticed.

也许我可以神不知鬼不觉地溜进教室。

OK, everyone. Less noise, please! Gather round and listen carefully. First we are going to search the beach and the rock pools. Let me remind you what we are looking for: seaweeds, fish, plants, all living things. When you find anything, make a note where

00在这里集合，游泳之后再吃午餐。别着急！我们有足够的时间。