1. slow-growing,生长速度慢的。
eg:Basal cell carcinoma of the skin: a slow-growing skin cancer appearing predominantly in older people
皮肤基底细胞癌：一种生长缓慢，主要出现在老年人中的皮肤癌。
2. have a hard time,在某方面（某事情）上会有困难；have a hard time后要跟动名词。
eg:You will have a hard time getting a ticket.
你要买到票是很困难的
3. species，种类，种。注意species的单复数都是species。
eg:There are many species of chrysanthemum.
菊花品种很多。
The giant panda has become an endangered species.
大熊猫已成了一种濒临灭绝的动物。
4. die out,逐渐消失,灭绝。
eg:Many old customs have died out.
许多旧的风俗已不复存在。 |