重點講解：
1. keep up with 跟上（變化等）；
We are having trouble keeping up with the recent surge in demand.
對于近來出現的需求猛增，我們難以應對4+mo-!Z+A,)_ma_WzN。
2. distinguish between 區分；辨別；分清；
At what age are children able to distinguish between right and wrong?
兒童到什么年齡才能明辨是非？
3. wrestle with 試圖解決；絞盡腦汁處理；
Delegates wrestled with the problems of violence and sanctions.
代表們試圖解決暴力與懲處的問題Il+YPLQ8kr02u3nT|6z[。
4. pass on to 將…轉移給；將…轉嫁給；
Moreover, the convention in the industry was to pass on to consumers any rise in costs.
此外，按照行業慣例，一旦生產成本上漲，它們就會轉嫁給消費者xZyU)qxp+v(fpN^。