重點(diǎn)講解：
1. keep up with （與…）齊步前進(jìn)；不落后（于…）；
She shook her head and started to walk on. He kept up with her.
她搖了搖頭開(kāi)始往前走Y&Z!;eUO[y。他跟了上去w8)8OSfscvz~i9c。
2. separte from 隔開(kāi)；阻隔；使分開(kāi)；
They became separated from their party.
他們和伙伴們分開(kāi)了;cK3[x!Su|s。
3. be suited to 合適的；適宜的；適當(dāng)?shù)模?/span>
The area is well suited to road cycling as well as off-road riding.
這個(gè)地方很適合舉行自行車(chē)公路賽和越野賽*!Cj)rqD.F&c[l_0u5jr。
4. compared to 與…相比；和…比起來(lái)；
His progress at school had been unspectacular compared to his brother.
和弟弟相比，他在學(xué)校里的進(jìn)步很不起眼#u8hcZL99K|[。