261.If the spacecraft (spaceship) is out of orbit, it can send a note automatically via its internal mail system.
262.The solar cell and other primary components were carefully checked before assembly.
组装以前，太阳能电池和一些其他部件都被仔细检查过。
263.White vapor blows out from the rocket’s reserve fuel tank because of the huge pressure,
由于压力巨大，白色的蒸汽从火箭的备用燃料箱中窜出。
264.It’s assessed that the phenomenon is extremely unique in the whole nature.
据估计这种现象在自然界是罕见的。
265.In a seminar, the speaker anticipated that it’s barely possible to find new planets through optical telescope.
那位发言人在研讨会上预言几乎不可能通过光学望远镜发现新的行星。
266.The committee judged it advisable to postpone the conference.
委员会认为会议延期举行时可行的。
267.The grave traffic accident occurred on a piercing chilly winter morning.
那起严重的交通事故发生在冬季的一个寒冷刺骨的早晨。
268.Taking a chap who was injured in elbow, rib and waist, the ambulance drove away as swiftly as an arrow.
带着那个肘部、肋骨和腰部受伤的小伙子，救护车箭一般地驶去了。
269.Your recommendation of extending the rail tunnel to the border of the county is not feasible.
将铁路隧道一直延续到县边界的建议是不可行的。
270.How to cash automobile insurance is beyond the scope of our inquiry.
如何兑现汽车保险的问题不在我们的咨询范围之内。