例句與造句

1. He and others estimate the procedure is used 3, 000 to 5, 000 times a year on second trimester pregnancies and typically involves healthy women and healthy fetuses.
2. They are : multiple tumors in the same breast; a history of prior irradiation therapy to the breast region; first or second trimester pregnancy; and diffuse areas of calcifications on X-rays.
3. The panel points out that the patient was " experiencing inevitable miscarriage of an early second trimester pregnancy where the risk to the mother increased with time from the time that membranes were ruptured ."
4. It's difficult to find second trimester pregnancy in a sentence. 用second trimester pregnancy造句挺難的