n. 鸭子,野鸭;鸭肉;(表示友好的称呼)乖乖;(板球)零分;
vt.& vi. 躲避,回避;潜入;忽然低下头(或弯下腰);迅速行进;
🗣️ 情景例句
I don't know for sure.
我不太清楚。
Please estimate your living costs for this month.
请估计一下你这月的生活费用。
I was doing some exercises on the high-and-low bars. When I landed, I fell forward and hurt myself. Someone was standing too close and I knocked into him and fell over onto my shoulder.