crossing boundary的用法和樣例：
例句
- As Las Vegas Sands struggled to raise capital, construction was curtailed and the number of workers crossing the border began to fall.
由於拉斯維加斯金沙集團難以籌集到資金，建築項目縮減了，穿越邊界的工人數量也開始下降。 - A small number of wounded Palestinians has crossed from Gaza into Egypt and some medical supplies have come in from Egypt via the Rafah border crossing.
一小批受傷的巴勒斯坦人已從加沙穿越邊界進入埃及，一些醫療物資也已通過拉法赫過境點從埃及進入了加沙。
