If thawed semen is used, it has to be injected directly into the uterus through the ewe's belly wall.
如果使用解冻的精液，它必须通过母羊的腹壁直接注入子宫。
It originates from the wall of the cloaca directly in front of the vent on the belly side, and curls backwards so the shaft and head lies directly beneath the vent opening.
它起源于泄殖腔壁侧面直接在前面的肚皮上发泄，和卷发向后使轴与头部直接位于下方的通风口开幕。
Is telling us not to do that sharp-tongued thick-skinned belly of an empty mountain bamboo shoots and top-heavy wall of bedrock shallow reed.
就是告诫我们不要做那嘴尖皮厚腹中空的山间竹笋和头重脚轻根底浅的墙上芦苇。
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