a personal locator beacon=a satellite distress（danger）beacon that will tell Search and Rescue teams anywhere in the world you need help through seamless messaging. your personal locator beacon informs emergency rescue who you are，your location，and that you need immediate help—all via satellite messengers（信使）.（就是一种求救工具，可以在手机没信号的时候使用）
premier 作形容词有“最好的，最重要的，首屈一指”的意思，作名词是首相、总理的意思
Welcome to New Zealand’s premier snow and ski center.
lap 一圈，可数
I run five laps around our neighborhood to exercise everyday.
carpet作动词有“覆盖”的意思，vt
When the snow melts in summer, the mountain slopes are carpeted in flowers and plants.
Ascent= a climb or walk to the summit of a mountain or hill.登高，可数
This is a fairly high mountain, so it’s gonna be a long ascent for us.
snowmobile机动雪橇（带引擎的）
First-timer，第一次做某事的人，可数；可以用regardless of 替代no matter，后者后面要跟句子，前者可以直接跟名词
These mountain trails have been designed to give first-timers an experience they’ll enjoy regardless of their age or skill.
ready meal=a meal that you buy already prepared and which only needs to be heated before you eat it.（即食食品，比如711里面已经包装好的咖喱鸡肉饭等）
Ready meals tend to have very high calories.
make an effort to do sth努力做某事
It’s good that many students realize the importance of learning English and make an effort to learn it well.
There needs to be需要有…
There needs to be more consistency between labeling systems on food packaging used by different supermarkets.
color-code= mark things with different colors as a means of identification给…加色码，vt
A color-coded system has been applied to food packaging to illustrate the levels of salt，fat，and sugar in a product.
be opposed to后面跟动词ing
It’s hardly surprising that some food manufacturers are opposed to flagging up how unhealthy their products are.
Reservation，保留意见，可以可数也可以不可数
Experts have deep reservations about the results of this experiment.
