They found the green stem which held the leaf on which Thumbelina sat.

它们找到了托着那片绿叶的梗子拇指姑娘就坐在那上面。

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In this case, look for a healthy green stem that measures about one foot in length.

在这种情况下，找一个健康的绿色茎，长约一尺长。

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From the leaves opposite view, very clearly saw the bulge has come from, a pale green stem roots.

从叶子反面看，可以清清楚楚地看见那凸出来的，一根根淡绿色的茎。

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We should help foreign graduates and foreign professionals, particularly in science, technology, engineering and mathematics, through an increased number of available H-1B work visas and a STEM green card program.

CNN: Give more visas to foreign-born workers

The bipartisan plan unveiled Monday proposes, among other things, an expansion of the H-1B visa program and granting green cards to anyone with an advanced STEM degree from an American university.

FORBES: How To Improve Immigrant Visas

The SMART Act, introduced by Lamar Alexander (R-TN) and Chris Coons (D-DE), is better because it would create a new temporary visa for STEM graduates without eliminating any other green card categories.

FORBES: Positive New Steps To Reform High-Skilled Immigration