1·Like the check-in clerk and the immigration official at Beijing's airport, the flight's co-pilot can only giggle uncomfortably when asked to explain the contradictions.
当被问起这些自相矛盾之处，航班的副驾驶员只能尴尬地傻笑，一如北京机场的地勤人员和出入境官员。
2·Employers are closing in on the limit for hiring foreign high-tech workers for jobs next year, roughly two months before the start of the 2006 fiscal year, an immigration official said Monday.
星期一，美国一位移民官称，雇主们为明年雇佣外国的高科技人员的申请已经接近限额了。
3·They must start to work after having their stay visa changed by Immigration office when they make an official working contract.
已正式签订劳动合同时，须办理滞留资格变更许可后才可开始劳务。