2. Be careful when you cross the road. 当你横穿马路时一定要小心。
3. Be careful when driving on the freeway. 在高速公路上开车要小心点。
英英解释
adj.
1. exercising caution or showing care or attention
2. cautiously attentive
3. with care and dignity
4. full of cares or anxiety
5. mindful of the future in spending money