重点讲解：
1. be associated with (与…）相关的；相联系的；
This syndrome is associated with frequent coughing.
这种综合征与经常咳嗽有关Y&!ML-MW)cH+9。
2. compare to 比较；对比；
The younger generation should see all that history, so they are able to compare it to what we have today.
年轻一代应该看到整个历史，这样他们就能够将过去与现在加以比较;HfMXLHFKUvfLuU&。
3. figure out 想出；理解；弄清；
It took them about one month to figure out how to start the equipment.
他们花了大约1个月的时间才搞清楚如何启动设备zTE3lzO,o~Fi)0fwo。
4. screen for 检查，筛查(以确定是否患病)；
The PSA test is used primarily to screen for prostate cancer before symptoms appear.
PSA检测主要用于筛查尚未出现症状的前列腺癌a[pQA12QLvry0~9N#t。

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