默克和葛兰素的发言人说所有证据表明疫苗是安全有效的。 没有证据表明需要再加强注射一针。
Spokesmen for Merck and Glaxo say all indications are that their vaccines are safe and effective, and there is no evidence that a booster shot will be needed.
我们坚持采用进口的高品质安全色料和一次性卫生针具！
We insist on the safety of imported high-quality stain and one-time health needle!
在一个安全的地方，汤姆仔细检查了别在上衣翻领上的两根大针，针上还穿着线，一根。
In a safe place Tom examined two large needles which were thrust into the lapels of his jacket, and had thread bound about them — one needle carried white thread and the other black. He said.
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