妊娠期从95天至150天不等。The gestation period can be anything between 95 and 150 days.经历一番痛苦挣扎后，她决定终止妊娠。After a lot of agonizing she decided to terminate the pregnancy.妊娠期服用的药物可能引起婴儿身体畸形。Drugs taken during pregnancy may cause phys...
那座城市的街道肮脏不堪，弥漫着令人窒息的废气。The city's streets are filthy and choked with exhaust fumes.肺呼出这些废气被排到空气中。As the lungs exhale this waste, gas is expelled into the atmosphere.问题在于废气中含有很多毒素。The problem was that the exhaust gas...